Description : The treatment of with concentrated NaOH gives
Last Answer : The treatment of with concentrated NaOH gives A. B. C. D.
Description : When benzaldehyde is heated with concentrated NaOH, it gives : (a) Benzyl alcohol (b) Sodium benzoate (c) Benzoic acid (d) Benzyl alcohol + Sodium benzoate
Last Answer : Benzyl alcohol + Sodium benzoate
Description : Which of the following metal (s) produce(s) `N_2O` gas on reaction with 20% `HNO_3`
Last Answer : Which of the following metal (s) produce(s) `N_2O` gas on reaction with 20% `HNO_3` A. Fe B. Sn C. Cu D. Zn
Description : `underset"Conc."(HCl) + underset"Conc."(HNO_3)to` In this reaction change in oxidation number of N Is ______
Last Answer : `underset"Conc."(HCl) + underset"Conc."(HNO_3)to` In this reaction change in oxidation number of N Is ______
Description : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives:
Last Answer : Phenol when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid gives ... C. nitrobenzene D. 2,4,6-rinitrobenzene
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)
Description : Benzene reacts with concentrated HNO3 in the presence of concentrated H2SO4 to give nitrobenzene. This reaction is an example of (a) Electrophilic addition (b) Nucleophilic addition (c) Electrophilic substitution (d) Nucleophilic substitution
Last Answer : Electrophilic substitution
Description : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?
Last Answer : Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product? A. B. C. D.
Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co
Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture
Description : White phosphorous on reaction with `NaOH` gives `PH_(3)` and
Last Answer : White phosphorous on reaction with `NaOH` gives `PH_(3)` and A. `Na_(2)HPO_(3)` B. `NaH_(2)PO_(2)` C. `NaH_(2)PO_(3)` D. `Na_(3)PO_(4)`
Description : An organic compound (A) on reduction gives a compound (B) which on reaction with `CHCI_(3)` and `NaOH` form (C). The compound (C) on catalytic reducti
Last Answer : An organic compound (A) on reduction gives a compound (B) which on reaction with `CHCI_(3)` and `NaOH` form (C ... . The compound (A) is: A. B. C. D.
Description : Phenol on heating with NaOH followed by reaction with alky1 halide gives
Last Answer : Phenol on heating with NaOH followed by reaction with alky1 halide gives A. Acetone B. Ether C. Ethonal D. Acetic acid
Description : Glyoxal (CHOCHO) on being heated with concentrated NaOH forms
Last Answer : Glyoxal (CHOCHO) on being heated with concentrated NaOH forms
Description : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of ... `H_3PO_2` D. `SOCl_2 , PCl_5` and `H_3PO_5`
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give ... porchloric acids D. (D) chloric and hypochlorus acids
Description : Which of the following reacts with NaOH to liberate a gas ?
Last Answer : Which of the following reacts with NaOH to liberate a gas ? A. `P_(4)` (white phosphorus) B. `S_(8)` (rhombic sulphur) C. `Cl_(2)` D. C (graphite)
Description : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` to form product B. A and B are respectivel
Last Answer : Phenol reacts with methyl chloroformate in the presence of `NaOH` to form product A. A reacts with `Br_(2)` ... A and B are respectively A. B. C. D.
Description : If one mole of `H_(2)SO_(4)` reacts with one mole of NaOH, equivalent weight of `H_(2)SO_(4)` will be :
Last Answer : If one mole of `H_(2)SO_(4)` reacts with one mole of NaOH, equivalent weight of `H_(2)SO_(4)` will be : A. 98 B. 49 C. 96 D. 48
Description : Compound `[X] C_(4)H_(11)N` reacts with p-toluence sulphonyl chloride in aqueous `NaOH` to give a solid. The compound [X] is:
Last Answer : Compound `[X] C_(4)H_(11)N` reacts with p-toluence sulphonyl chloride in aqueous `NaOH` to give a solid. ... 2)-underset(CH_(3))underset(|)(N)-CH_(3)`
Description : An inorganic halide `(A)` reacts with water to form two acids `(B)` and `(c). (A)` also reacts with `NaOH` to form two salts `(D)` and `( E)` which re
Last Answer : An inorganic halide `(A)` reacts with water to form two acids `(B)` and `(c). (A)` also reacts with `NaOH` to ... . `SF_(6)` C. `SeF_(6)` D. `SF_(4)`
Description : An inorganic compound X reacts with water to form two cid Y and Z. X also reacts with NaOH to form two salts B and C which remain in solution. The sol
Last Answer : An inorganic compound X reacts with water to form two cid Y and Z. X also reacts with NaOH to form two salts B ... ` C. `SbCl_(3)` D. `PCl_(3)F_(2)`
Description : Which of the following oxides reacts with both HCl and NaOH?
Last Answer : Which of the following oxides reacts with both HCl and NaOH? A. CaO B. ZnO C. `N_(2)O_(5)` D. `CO_(2)`
Description : Acetamide reacts with Br2/NaOH to give (a) Methylamine (b) Urea (c) Ethylamine (d) Acetyl bromide
Last Answer : Methylamine
Description : Which of the following statements is False about acetamide? (a) reacts with Br2/NaOH to form tertiary amine (b) undergoes acid-hydrolysis to form acetic acid (c) undergoes dehydration with P2O5 to form a nitrile (d) is a white crystalline solid, soluble in water
Last Answer : reacts with Br2/NaOH to form tertiary amine
Description : Chlorine on reaction with hot and concentrated sodium hydroxide gives:
Last Answer : Chlorine on reaction with hot and concentrated sodium hydroxide gives: A. `ClO_3^-` and `ClO_2^-` B. `Cl^-` ... and `ClO_3^-` D. `Cl^-` and `ClO_2^-`
Description : A compound X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound Y'. X' also reacts with sodium metal to evolve a colourless gas Z'. Identify X', Y' ... the chemical reaction of formation of Y' and also write the role of sulphuric acid in the reaction. -Science
Last Answer : X-Ethanol/ (C2H5OH)/Ethyl AlcoholY- Ethene / (C2H4)Z- Hydrogen/ (H2)Role of sulphuric acid - dehydrating agent
Description : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R): The reaction involves cleavage of C-O bo
Last Answer : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R ... R is false D. A is false but R is true
Description : When an inorganic compound reacts with `SO_2` in aqueous medium produces `(A). (A)` on reaction with `Na_2 CO_3` gives the compound `(B)` which with s
Last Answer : When an inorganic compound reacts with `SO_2` in aqueous medium produces `(A). (A)` on reaction with `Na_2 CO_3` ... C. `Na_(2)S` D. `Na_(2)SO_(3)`
Description : An organic acid (A) reacts with concentrated oxide (C) and a diatomic oxide (D). When D reacts with chlorine gas a poisonous gas (E) is evolve. This g
Last Answer : An organic acid (A) reacts with concentrated oxide (C) and a diatomic oxide (D). When D reacts ... hybridization D. The compound `F=NH_(2)CONH_(2)`
Description : Excess of `PCl_(5)` reacts with concentrated `H_(2)SO_(4)` giving :
Last Answer : Excess of `PCl_(5)` reacts with concentrated `H_(2)SO_(4)` giving : A. Sulphuryl ... . Sulphurous acid C. Chlorosulphonic acid D. Thionyl choride
Last Answer : Excess of `PCl_(5)` reacts with concentrated `H_(2)SO_(4)` giving : A. Thionyl ... Sulphurous chloride C. Chlorosulphonic acid D. sulphonating agent
Description : Benzaldehyde reacts with a mixture of concentrated sulfuric acid and nitric acid to give (a) p-Nitrobenzaldehyde (b) o-Nitrobenzaldehyde (c) p-Nitrobenzoic acid (d) m-Nitrobenzaldehyde
Last Answer : m-Nitrobenzaldehyde
Description : Cyclopropane reacts with concentrated HBr to give. (a) 1-Bromopropane (b) Bromocyclopropane (c) 2-Bromopropane (d) 1,2-Dibromopropane
Last Answer : 1-Bromopropane
Description : Diethyl ether reacts with excess of hot concentrated HI to form (a) CH3CH2I + CH3CH2OH (b) Only CH3CH2OH (c) CH3CH2OH + CH2=CH2 (d) Only CH3CH2
Last Answer : Only CH3CH2
Description : Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid
Last Answer : Diethyl ether
Description : 2-Propanol reacts with KBr and concentrated H2SO4 to give (a) 1-Bromopropane (b) 1,2-Dibromopropane (c) 2-Bromopropane (d) 2,2-Dibromopropane
Last Answer : 2-Bromopropane
Description : A compound reacts with steam in the presence of concentrated H2SO4 to give isopropyl alcohol. The compound could be (a) Alkane (b) Alkyne (c) Alkene (d) Allene
Last Answer : Alkene
Description : 45. When Cl2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from (1) Zero to + 1 and zero to –3 (2) Zero to +1 and zero to –5 (3) Zero to –1 and zero to + 5 (4) Zero –1 and zero to + 3
Last Answer : Zero to –1 and zero to + 5
Description : `NaOH+underset("excess")"Sulphur"overset("Boil")rarrX+Y+H_(2)O` then X and Y are
Last Answer : `NaOH+underset("excess")"Sulphur"overset("Boil")rarrX+Y+H_(2)O` then X and Y are A. `Na_(2)SO_(3),Na_(2)SO_ ... )SO_(4)` D. `Na_(2)S_(5),Na_(2)SO_(3)`
Description : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives elemental sulphur. Reason: `SO_(2)` is a reducing agent.
Last Answer : Assertion: Reaction of `SO_(2)` and `H_(2)S` in the presence of `Fe_(2)O_(3)` catalyst gives ... is False. D. If both Assertion & Reason are False.
Description : Sulphuric acid completely saturated with sulphur trioxide is called (A) Concentrated sulphuric acid (B) Oleum (C) Sulphurous acid (D) Dilute sulphuric acid
Last Answer : (A) Concentrated sulphuric acid
Description : On treatment with strong NaOH at 613K, p-chlorotoluene gives:
Last Answer : On treatment with strong NaOH at 613K, p-chlorotoluene gives: A. ortho-cresol B. meta-cresol C. para-cresol D. none of these
Description : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a characteristic colour with neutral `FeCl_(3)`
Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... colour with `FeCl_(3)`? A. B. C. D.
Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... compound (B) would be : A. B. C. D.
Last Answer : Compound (A)`C_(7)H_(8)O` is insoluble in aqueous `NaHCO_(3)` and dissolves in aqueous NaOH and gives a ... structure of compound A is : A. B. C. D.