Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox reaction equation from the two half-reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry

Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox reaction equation from the two half-reactions and calculate the cell potential from the standard potentials and predict if the reaction is reactant or product favoured. -Chemistry
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The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → Sn4+ (aq) + 2e– ] × 5 E° = + 0.15 V Af cathode (reduction) : MnO–4(aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I)] × 2 E° = + 1.51 V The Net R × M = 2MnO–4(aq) + 16H+ + 5Sn2+ → 2Mn2+ + 5Sn4+ + 8H2O Now E°cell = E°cathode – E°anode = 1.51 – 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.
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Two half-reactions of an electrochemical cell are given below : MnO–4 (aq) + 8H+ (aq) + 5e– → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e–, E° = + 0.15 V. Construct the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Description : Two half-reactions of an electrochemical cell are given below : MnO-4 (aq) + 8H+ (aq) + 5e- → Mn2+ (aq) + 4H2O (I), E° = 1.51 V Sn2+ (aq) → Sn4+ (aq) + 2e- ... the redox equation from the standard potential of the cell and predict if the reaction is reactant favoured or product favoured. -Chemistry

Last Answer : The reactions can be represented at anode and at cathode in the following ways : At anode (oxidation) : Sn2+ → = Sn4+ (aq) + 2e- ] 5 E° = + 0.15 V At cathode (reduction) : MnO-4(aq) + 8H+ ... = E°cathode - E°anode = 1.51 - 0.15 = + 1.36 V ∴ Positive value of E°cell favours formation of product.

Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have to measure the cell potential to obtain the difference in potential energy because the potential of half-reactions cannot be measured directly. C The direction of a redox reaction can only be determined experimentally. D Half-cell potentials for half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Description : Which one of the following statements is not correct? A Since voltage depends on concentrations, using standard conditions makes it easier to compare different electrochemical reactions. B We have ... half-reactions are determined by combining the relevant half-cell with a standardised half-cell.

Last Answer : C The direction of a redox reaction can only be determined experimentally. 

Determine the values of equilibrium constant (Kc) and ΔG° for the following reaction : Ni(s) + 2Ag+ (aq) → Ni2+ (aq) + 2Ag(s), E° = 1.05 V (1F = 96500 C mol-1 -Chemistry

Description : Determine the values of equilibrium constant (Kc) and ΔG° for the following reaction : Ni(s) + 2Ag+ (aq) → Ni2+ (aq) + 2Ag(s), E° = 1.05 V (1F = 96500 C mol-1 -Chemistry

Last Answer : According to the formula ΔG° = -nFE° = – 2 × 96500 ×1.05 or ΔG° = -202650 J mol-1 = -202.65 KJ mol-1 Now ΔG° ⇒ -202650 J Mol-1 R = 8.314 J/Mol/K, T = 298 K

(a) What are fuel cells? Explain the electrode reactions involved in the working of H2 – O2 fuel cell. (b) Represent the galvanic cell in which the reaction Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s) takes place. -Chemistry

Description : (a) What are fuel cells? Explain the electrode reactions involved in the working of H2 – O2 fuel cell. (b) Represent the galvanic cell in which the reaction Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s) takes place. -Chemistry

Last Answer : (a) Fuel cells : These cells are the devices which convert the energy produced during combustion of fuels like H2, CH4, etc. directly into electrical energy. The electrode reaction for H2 – O2 fuel cell : (b) The galvanic cell may be represented as Zn (s) | Zn2+ (1M) || Cu2+ (1M) | Cu (s)

Assertion :- `Zn(s)+Cu^(+2)(aq)rarr Zn^(+2)(aq)+Cu(s)` can be spilt into following half reactions `{:(Zn(s)rarrZn^(+2)+2e^(-),),(,"(Oxidation half rea

Description : Assertion :- `Zn(s)+Cu^(+2)(aq)rarr Zn^(+2)(aq)+Cu(s)` can be spilt into following half reactions `{:(Zn(s)rarrZn^(+2)+2e^(-),),(,"(Oxidation half rea

Last Answer : Assertion :- `Zn(s)+Cu^(+2)(aq)rarr Zn^(+2)(aq)+Cu(s)` can be spilt into following half ... Reason is False. D. If both Assertion & Reason are False.

Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as oxidizing agent. A) (A), (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)

Description : Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as ... (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)

Last Answer : C) (A), (B) & (D)

Identify the INCORRECT statement below regarding chemical equilibrium. A All chemical reactions are, in principle, reversible. B Equilibrium is achieved when the forward reaction rate equals the reverse reaction rate. C Equilibrium is achieved when the concentrations of species become constant. D Equilibrium is achieved when the reaction quotient, Q, equals the equilibrium constant. E Equilibrium is achieved when reactant and product concentrations are equal.

Description : Identify the INCORRECT statement below regarding chemical equilibrium. A All chemical reactions are, in principle, reversible. B Equilibrium is achieved when the forward reaction rate equals the ... equilibrium constant. E Equilibrium is achieved when reactant and product concentrations are equal.

Last Answer : E Equilibrium is achieved when reactant and product concentrations are equal.

Predict the two most likely mechanisms for the reaction of 2-iodohexane with sodium ethoxide. (a) SN2 and SN1 (b) E1 and E2 (c) SN2 and E2 (d) E1 and SN1

Description : Predict the two most likely mechanisms for the reaction of 2-iodohexane with sodium ethoxide. (a) SN2 and SN1 (b) E1 and E2 (c) SN2 and E2 (d) E1 and SN1

Last Answer : SN2 and E2

Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Description : Sodium reacts with water to form sodium hydroxide and hydrogen gas. The balanced equation which represents the above reaction is (a) Na(s) + 2H20(l) → 2NaOH(aq) + 2H2(g) (b) 2Na(s) + 2H2O(l) → 2NaOH(aq) +H2(g) (c) 2Na(s) + 2H20(l) → NaOH(aq) + 2H2(g) (d) 2Na(s) + H20(l) - 2NaOH(aq) + 2H2(g)

Last Answer : Answer: (b)

The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to  (a) E/3  (b) E/2  (c) 3E/4  (d)2E/3  (e) 5E/4.

Description : The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to  (a) E/3  (b) E/2  (c) 3E/4  (d)2E/3  (e) 5E/4.

Last Answer : Answer : d

A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume of the reacting mixture is V and the density of the liquid mixture is constant. The mass balance for A is (A) d(VCA )/dt = -F (CAF - CA ) - kCA 2V (B) d(VCA )/dt = F (CAF - CA ) - kCA 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V

Description : A second order liquid phase reaction, A → B, is carried out in a mixed flow reactor operated in semi batch mode (no exit stream). The reactant A at concentration CAF is fed to the reactor at a volumetric flow rate of F. The volume ... 2V (C) d(VCA )/dt = -FCA - kCA 2V (D) d(VCA )/dt = FCAF - kCA 2V

Last Answer : (D) d(VCA )/dt = FCAF - kCA 2V

What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Description : What information do you get from the following chemical equation: Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)

Last Answer : This gives zinc chloride and hydrogen. The word equation is: Zinc + Hydrochloric acid → Zinc chloride + Hydrogen Formulae for the products are ZnCl2 and H2

Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Description : Write the balanced equation for the following chemical reactions. (i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen -Chemistry-10

Last Answer : (i) H2 + Cl2 → 2HCl (ii) 3 BaCl2 + Al2(SO4)3 → BaSO4 + 2 AlCl3 (iii) 2Na + 2H2O → 2NaOH + H2↑

The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the reactions occurring during the corrosion of iron in the atmosphere. -Chemistry

Description : The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the reactions occurring during the corrosion of iron in the atmosphere. -Chemistry

Last Answer : The mechanism of corrosion is explained on the basis of electrochemical theory. By taking example of rusting of iron, we Refer tothe formation of small electrochemical cells on the surface of iron. The redox reaction involves ... net resultant Redox reaction is 2Fe(s) + O2 (g) + 4H+ → 2Fe2+ + 2H2O

Predict the two most likely mechanisms which occur when 2-iodohexane is heated in ethanol. (a) SN2 and SN1 (b) E1 and E2 (c) SN2 and E2 (d) E1 and SN1

Description : Predict the two most likely mechanisms which occur when 2-iodohexane is heated in ethanol. (a) SN2 and SN1 (b) E1 and E2 (c) SN2 and E2 (d) E1 and SN1

Last Answer : E1 and SN1

Which of the following statements concerning SN2 reactions of alkyl halides is not correct? (a) The rate of reaction depends on the concentration of the nucleophile. (b) The rate of reaction depends on the concentration of the alkyl halide. (c) The rate of reaction of a particular alkyl bromide depends on the steric accessibility of the carbon of the C-Br bond. (d) All alkyl iodides react more rapidly than all alkyl chlorides

Description : Which of the following statements concerning SN2 reactions of alkyl halides is not correct? (a) The rate of reaction depends on the concentration of the nucleophile. (b) The rate of reaction depends on the ... carbon of the C-Br bond. (d) All alkyl iodides react more rapidly than all alkyl chlorides

Last Answer : All alkyl iodides react more rapidly than all alkyl chlorides

The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is: (A) 0.875 (B) 0.5 (C) 0.425 (D) Data insufficient to calculate

Description : The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is: (A) 0.875 (B) 0.5 (C) 0.425 (D) Data insufficient to calculate

Last Answer : (A) 0.875

The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second. (A) 0.5 (B) 1 (C) 2(D) 3

Description : The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second. (A) 0.5 (B) 1 (C) 2 (D) 3

Last Answer : (A) 0.5

Identify the substances that are oxidised and the substances which are reduced in the following reactions. (i) 4Na(s) + O2(g) → 2Na2O(s) (ii) CuO (s) + H2(g) → Cu (s) + H2O(l) -Chemistry-10

Description : Identify the substances that are oxidised and the substances which are reduced in the following reactions. (i) 4Na(s) + O2(g) → 2Na2O(s) (ii) CuO (s) + H2(g) → Cu (s) + H2O(l) -Chemistry-10

Last Answer : (i) Substances oxidised is Na as it gains oxygen and oxygen is reduced. (ii) Substances reduced is Cu as hydrogen is oxidised as it gains oxygen.

(a) Write the essential condition for the following reaction to take place: 2AgBr—-> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical reaction 2FeS04 — chemical-reactions-and-equations-chapter-wise-important-questions-class-10-science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Description : (a) Write the essential condition for the following reaction to take place: 2AgBr--> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical ... science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Last Answer : Answer. This reaction is used in photography. (c) Slaked lime is formed with hissing sound and lot of heat is envolved.

Kinetics is the study of: (1) The rate of chemical reaction (2) How fast the reactions go (3) The mechanisms and paths of the molecules take in joining from one reactant to products (4) All of these are correct

Description : Kinetics is the study of: (1) The rate of chemical reaction (2) How fast the reactions go (3) The mechanisms and paths of the molecules take in joining from one reactant to products (4) All of these are correct

Last Answer : (4) All of these are correct Explanation: In chemistry, the study of rates and mechanisms of chemical processes and, of the factors on which they depend, is called kinetics. is the study of ... provides a very detailed picture of which bonds are broken and formed during the course of a reaction.

Kinetics is the study of: (1) The rate of chemical reaction (2) How fast the reactions go (3) The mechanisms and paths of the molecules take in joining from one reactant to products (4) All of these are correct

Description : Kinetics is the study of: (1) The rate of chemical reaction (2) How fast the reactions go (3) The mechanisms and paths of the molecules take in joining from one reactant to products (4) All of these are correct

Last Answer : All of these are correct

For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a single CSTR for high yield (B) Tubular reactor is preferred over a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Last Answer : (C) Both (A) and (B)

At absolute zero temperature, for any reaction involving condensed phases (A) Δ G° = 0 , Δ H° = 0 (B) Δ H° = 0 , Δ S° = 0 (C) Δ S° = 0 , Δ E° = 0 (D) Δ S° = 0 , Δ Cp° = 0

Description : At absolute zero temperature, for any reaction involving condensed phases (A) Δ G° = 0 , Δ H° = 0 (B) Δ H° = 0 , Δ S° = 0 (C) Δ S° = 0 , Δ E° = 0 (D) Δ S° = 0 , Δ Cp° = 0

Last Answer : C) Δ S° = 0 , Δ E° = 0

If the more negative standard reduction potential of a redox pair, the greater the tendency to (A) To lose electrons (B) To gain electrons (C) To lose/gain electrons (D) To lose and gain electrons

Description : If the more negative standard reduction potential of a redox pair, the greater the tendency to (A) To lose electrons (B) To gain electrons (C) To lose/gain electrons (D) To lose and gain electrons

Last Answer : A

Which of the following observations is / are not correct about the given equation: Pb(NO 3 ) 2 (aq) + 2 KI (aq)  PbI 2 (s) + 2KNO 3 (aq) (a) PbI 2 is yellow precipitate insoluble in water (b) It is precipitation reaction (c) It is single displacement reaction (d) It is very fast reaction

Description : Which of the following observations is / are not correct about the given equation: Pb(NO 3 ) 2 (aq) + 2 KI (aq)  PbI 2 (s) + 2KNO 3 (aq) (a) PbI 2 is yellow precipitate insoluble in water (b) It is precipitation reaction (c) It is single displacement reaction (d) It is very fast reaction

Last Answer : (c) It is single displacement reaction

The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given below: The oxidizing and reducing agents involved in this redox reaction are: (a) Iodine and sulphur respectively (b) Iodine and hydrogen sulphide respectively (c) Sulphur and iodine respectively (d) Hydrogen sulphide and sulphur

Description : The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given below: The oxidizing and reducing agents involved in this redox reaction are: (a) ... and hydrogen sulphide respectively (c) Sulphur and iodine respectively (d) Hydrogen sulphide and sulphur

Last Answer : (b) Iodine and hydrogen sulphide respectively

In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` (Unbalance equation) 20 mL of 0.1 M `KMnO_(4)` react quantitive

Description : In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` (Unbalance equation) 20 mL of 0.1 M `KMnO_(4)` react quantitive

Last Answer : In the redox reaction . `MnO_(4)^(-)+C^(2)O_(4)^(2-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O` ( ... . 40 mL of 0.1 M oxalate D. 50 mL of 0.25 M oxalate

n electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a – (1) Power transmittor (2) Battery (3) Uninterrupted power supply (UPS) (4) Generator

Description : n electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a – (1) Power transmittor (2) Battery (3) Uninterrupted power supply (UPS) (4) Generator

Last Answer : (3) Uninterrupted power supply (UPS) Explanation: A Galvanic cell, also known as battery, is an electro-chemical cell that derives electrical energy from spontaneous redox reactions taking place within ... produce direct current. A battery is a set of galvanic cells that are connected in parallel.

An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : (1) Power transmittor (2) Battery (3) Uninterrupted power supply (UPS) (4) Generator

Description : An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : (1) Power transmittor (2) Battery (3) Uninterrupted power supply (UPS) (4) Generator

Last Answer : Battery

Velocity of a chemical reaction (A) Decreases with increase in temperature (B) Increases with increase of pressure of reactants for all reactions (C) Decreases with increase of reactant concentration (D) None of these

Description : Velocity of a chemical reaction (A) Decreases with increase in temperature (B) Increases with increase of pressure of reactants for all reactions (C) Decreases with increase of reactant concentration (D) None of these

Last Answer : (D) None of these

Why cation present below in electrochemical series can discharge before the elements present above them in an electrochemical cell?

Description : Why cation present below in electrochemical series can discharge before the elements present above them in an electrochemical cell?

Last Answer : Ans: This is because their ability to be reduced (reduction potential) is more than the cation present above them in electrochemical series. So they take electrons before the other cations and get discharged.

The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio is 18, then the stress developed in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2

Last Answer : (b) 135N/mm2

Why does it takes several redox reactions in a cell to water from hydrogen and oxygen?

Description : Why does it takes several redox reactions in a cell to water from hydrogen and oxygen?

Last Answer : hydrogen and oxygen combine explosively in a single reaction

What purpose does the cell use energy from redox reactions in cellular respiration?

Description : What purpose does the cell use energy from redox reactions in cellular respiration?

Last Answer : The purpose of cellular respiration is to draw energy, oxygen and also to have carbon dioxide.

In the redox reactions of cellular respiration a cell of uses both?

Description : In the redox reactions of cellular respiration a cell of uses both?

Last Answer : A cell uses both glucose and oxygen in the redox reactions ofcellular respiration.

What purpose does the cell use energy from redox reactions in cellular respiration?

Description : What purpose does the cell use energy from redox reactions in cellular respiration?

Last Answer : The purpose of cellular respiration is to draw energy, oxygen and also to have carbon dioxide.

Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A + B → A2 B. Which of the following statements concerning this reaction are incorrect? -Chemistry 9th

Description : Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A + B → A2 B. Which of the following statements concerning this reaction are incorrect? -Chemistry 9th

Last Answer : (c) (i), (iii), (iv) Consider the example of H2O

Which of the following compounds will undergo an SN2 reaction most readily? (a) (CH3)3CCH2I (b) (CH3)3CCl (c) (CH3)2CHI (d) (CH3)2CHCH2CH2CH2I

Description : Which of the following compounds will undergo an SN2 reaction most readily? (a) (CH3)3CCH2I (b) (CH3)3CCl (c) (CH3)2CHI (d) (CH3)2CHCH2CH2CH2I

Last Answer : (CH3)2CHCH2CH2CH2I

Which of the following species is most reactive in a SN2 reaction? (a) CH3CH2Cl (b) CH3CH2Br (c) CH3CH2I (d) CH3CH2F

Description : Which of the following species is most reactive in a SN2 reaction? (a) CH3CH2Cl (b) CH3CH2Br (c) CH3CH2I (d) CH3CH2F

Last Answer : CH3CH2I

Which of the following compounds would react most rapidly in an SN2 reaction? (a) CH3CH2I (b) CH2=CH–I (c) (CH3)2CHI (d) (CH3)3CI

Description : Which of the following compounds would react most rapidly in an SN2 reaction? (a) CH3CH2I (b) CH2=CH–I (c) (CH3)2CHI (d) (CH3)3CI

Last Answer : CH3CH2I

Which of the following factors influence whether a reaction will proceed by an SN1, SN2, E1, or E2 mechanism? (a) Structure of the alkyl halide (b) Solvent (c) Concentration of reagents (d) Nature of the nucleophile (e) All of these

Description : Which of the following factors influence whether a reaction will proceed by an SN1, SN2, E1, or E2 mechanism? (a) Structure of the alkyl halide (b) Solvent (c) Concentration of reagents (d) Nature of the nucleophile (e) All of these

Last Answer : All of these

Which is a catalyst promoter used in catalytic ammonia synthesis reaction? (A) Al2O3 (B) Cr2O3 (C) K2O (D) MnO

Description : Which is a catalyst promoter used in catalytic ammonia synthesis reaction? (A) Al2O3 (B) Cr2O3 (C) K2O (D) MnO

Last Answer : (C) K2O

Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Description : Write chemical equation reactions taking place when carried out with the help of (a) Iron reacts with steam (b) Magnesium reacts with dil HCl (c) Copper is heated in air. -Chemistry

Last Answer : This is the Answer.

In the network shown in fig. , points A, B, and C are at potentials of 70 V, 0, and 10V, respectively.

Description : In the network shown in fig. , points A, B, and C are at potentials of 70 V, 0, and 10V, respectively.

Last Answer : In the network shown in fig. , points A, B, and C are at potentials of 70 V, 0, and 10V, respectively. ... AB, DB and DC are in the ratio of `3:2:1`

When dipentyl ether is treated with excess HI, through what type of mechanism(s) does the major product result? (a) SN2 (b) SN1 (c) E1(d) E2

Description : When dipentyl ether is treated with excess HI, through what type of mechanism(s) does the major product result? (a) SN2 (b) SN1 (c) E1 (d) E2

Last Answer : SN2

Which of the reactions between the following pairs of reagents proceeds by a mechanism that may be described as an electrophilic substitution? (a) Benzene + Br2/FeBr3 (b) Propene + Br2 (c) Acetone + NH2NH2 (d) Ethyl bromide + aq KOH

Description : Which of the reactions between the following pairs of reagents proceeds by a mechanism that may be described as an electrophilic substitution? (a) Benzene + Br2/FeBr3 (b) Propene + Br2 (c) Acetone + NH2NH2 (d) Ethyl bromide + aq KOH

Last Answer : Benzene + Br2/FeBr3

For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal decomposition reactions ? (Given : Atomic w

Description : For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal decomposition reactions ? (Given : Atomic w

Last Answer : For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal ... rarr N_(2) (g) + 3H_(2) (g)`

For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal decomposition reactions ? (Given : Atomic w

Description : For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal decomposition reactions ? (Given : Atomic w

Last Answer : For per gram of reactant, the maximum quantity of `N_(2)` gas is produce in which of the following thermal ... rarr N_(2) (g) + 3H_(2) (g)`