Description : Assertion :- In acidic medium, equivalent weight of `K_(2)Cr_(2)O_(7)` is equal to `294//6`. Reason :- In acidic medium, `Cr_(2)O_(7)^(-2)` is reduced
Last Answer : Assertion :- In acidic medium, equivalent weight of `K_(2)Cr_(2)O_(7)` is equal to `294//6`. ... is False. D. If both Assertion & Reason are False.
Description : Determine the equivalent weight of the following oxidising and reducing agents : (a) `KMnO_(4)` (reacting in acidic medium `MnO_(4)^(-)rarrMn^(2+)`) (
Last Answer : Determine the equivalent weight of the following oxidising and reducing agents : (a) `KMnO_(4)` (reacting in ... medium `MnO_(4)^(-)rarr MnO_(2)`)
Description : If equal volumes of `0.1 M KMnO_(4)` and `0.1 M K_(2)Cr_(2)O_(7)` solutions are allowed to oxidise `Fe^(2+)` to `Fe^(3+)` in acidic medium, then `Fe^(
Last Answer : If equal volumes of `0.1 M KMnO_(4)` and `0.1 M K_(2)Cr_(2)O_(7)` solutions are allowed to ... O_(7)` C. equal in both cases D. cannot be determined.
Description : Molecular weight of `KBrO_(3)` is M. What is its equivalent weight, if the reaction is : `BrO_(3)^(-)rarrBr^(-)" (acidic medium)"`
Last Answer : Molecular weight of `KBrO_(3)` is M. What is its equivalent weight, if the reaction is : `BrO_(3)^(-)rarrBr^(-)" ... )"` A. M B. M/4 C. M/6 D. 6M
Description : If mass of `KHC_(2)O_(4)` (potassium acid oxalate) required to reduce 100 mL of 0.02 M `KMnO_(4)` in acidic medium is x g and to neutralise 100 mL of
Last Answer : If mass of `KHC_(2)O_(4)` (potassium acid oxalate) required to reduce 100 mL of 0.02 M `KMnO_(4)` in acidic ... y is 1g D. If x is 11g then y is 5.5g
Description : How many litres of `Cl_(2)` at STP will be liberated by the oxidation of `NaCl` with `10 g KMnO_(4)` in acidic medium: (Atomic weight: `Mn=55 and K=39
Last Answer : How many litres of `Cl_(2)` at STP will be liberated by the oxidation of `NaCl` with `10 g KMnO_(4)` in ... 3.54 B. 7.08 C. 1.77 D. None of these
Description : In alkaline medium , `KMnO_(4)` reacts as follows `2KMnO_(4)+2KOH rarr 2K_(2)MnO_(4)+H_(2)O+O` Therefore, the equivalent mass of `KMnO_(4)` will be
Last Answer : In alkaline medium , `KMnO_(4)` reacts as follows `2KMnO_(4)+2KOH rarr 2K_(2)MnO_(4)+H_(2)O+O` Therefore, the ... 31.6` B. `63.2` C. `126.4` D. 158
Description : For `KMnO_(4)` in strong basic medium correct combination is -
Last Answer : For `KMnO_(4)` in strong basic medium correct combination is - A. (I) (ii) (R) B. (II) (ii) (P) C. (II) (iii) (S) D. (I) (iv) (Q)
Description : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi
Last Answer : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is ... of CuS, `Cu_(2)S` and `KMnO_(4)` respectively.
Description : Assertion :- Equivalent weight of `NH_(3)` in the reaction `N_(2) rarrNH_(3)` is `17//3` while that of `N_(2)` is `28//6`. Reason :- `"Equivalent weig
Last Answer : Assertion :- Equivalent weight of `NH_(3)` in the reaction `N_(2) rarrNH_(3)` is `17//3` while ... is False. D. If both Assertion & Reason are False.
Description : The number of moles of `KMnO_(4)` that will be needed to react completely with one mole of ferrous oxalate in acidic solution is:
Last Answer : The number of moles of `KMnO_(4)` that will be needed to react completely with one mole of ferrous oxalate in acidic ... //5` C. `3//5` D. `4//5`
Description : Which of the following compounds may give reaction with acidic `KMnO_(4)` ?
Last Answer : Which of the following compounds may give reaction with acidic `KMnO_(4)` ? A. B. C. D.
Description : For `KMnO_(4)` in neutral medium correct combination is -
Last Answer : For `KMnO_(4)` in neutral medium correct combination is - A. (I) (iii) (Q) B. (II) (i) (R) C. (I) (iii) (S) D. (II) (iii) (R)
Description : Which of the following samples of reducing agents is /are chemically equivalent to 25mL of 0.2 N `KMnO_(4)` to be reduced to `Mn^(2+)` and water?
Last Answer : Which of the following samples of reducing agents is /are chemically equivalent to 25mL of 0.2 N `KMnO_(4)` ... SnCl_(2)` to be oxidized to `Sn^(4+)`
Description : Which one of the following basic radical (s) `is//are ` precipitated as sulphides in acidic medium in qualitative analysis?
Last Answer : Which one of the following basic radical (s) `is//are ` precipitated as sulphides in acidic medium in qualitative analysis ... `Cd^(2+)` D. `Zn^(2+)`
Description : SnO2 forms a positively charged colloidal sol in acidic medium and a negatively charged sol in the basic medium. Why ?
Last Answer : Ans. SnO2 is amphoteric in nature. It reacts with acid eg. HCl to form SnCl4 in the solution. The common Sn4+ ions are adsorbed on the surface of SnO2 particles giving them a positive ... solution. The stannate ions are adsorbed on the surface of SnO2 particles giving them a negative charge.
Description : Methyl orange indicator turns (A) Orange yellow in alkaline medium (B) Orange yellow in acidic medium (C) Colourless in acidic medium (D) Colourless in basic medium
Last Answer : (A) Orange yellow in alkaline medium
Description : In the ionic equation `2K^(+)BrO_(3)^(-)+12H^(+)+10e^(-)rarrBr_(2)+6H_(2)O+2K^(+)`, the equivalent weight of `KBrO_(3)` will be : (where M = molecular
Last Answer : In the ionic equation `2K^(+)BrO_(3)^(-)+12H^(+)+10e^(-)rarrBr_(2)+6H_(2)O+2K^(+)`, the equivalent weight of ` ... )`) A. M/5 B. M/2 C. M/6 D. M/4
Description : Assertion : Phenols are more acidic than aliphatic alcohols. Reason : Phenoxides are stabilized by resonance.
Last Answer : Assertion : Phenols are more acidic than aliphatic alcohols. Reason : Phenoxides are stabilized by resonance. ... D. A is incorrect but R is correct
Description : Assertion: The study of biomolecules is called Molecular biology. Reason: Cell is a type of molecule.
Last Answer : Assertion: The study of biomolecules is called Molecular biology. Reason: Cell is a type of molecule. A. If ... wrong D. If both As and R are wrong.
Description : Assertion : o-Hydrozybenaldehyde is less soluable in water than p-Hydroxybenzalbenzaldehye. Reason : Intra molecular hydrogen bonding in o-Hydrozbenza
Last Answer : Assertion : o-Hydrozybenaldehyde is less soluable in water than p-Hydroxybenzalbenzaldehye. Reason : Intra ... D. Assertion is false, Reason is true
Description : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition of `M-H` bond requires lesser
Last Answer : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition ... in `O-H` than `S-H`.
Description : Assertion :- In `NH_(4)NO_(3)`, the oxidation number of the two N-atoms is not equal. Reason :- One N atom is present in the ammonium ion while the ot
Last Answer : Assertion :- In `NH_(4)NO_(3)`, the oxidation number of the two N-atoms is not equal. Reason : ... is False. D. If both Assertion & Reason are False.
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
Description : In the redox reaction, `2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+) to 2Mn^(2+)+10CO_(2)+8H_(2)O` 20mL of 0.1 M `KMnO_(4)` reacts quantitatively with :
Last Answer : In the redox reaction, `2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+) to 2Mn^(2+)+10CO_(2)+8H_(2)O` 20mL ... 50 mL of 0.25 M oxalate D. 50 mL of 0.1 M oxalate
Description : `25ml` of a `0.1(M)` solution of a stable cation of transition metal `z` reacts exactly with `25 ml` of `0.04(M)` acidified `KMnO_(4)` solution. Which
Last Answer : `25ml` of a `0.1(M)` solution of a stable cation of transition metal `z` reacts exactly with `25 ml` of `0.04 ... 3+)rarrZ^(4+)` D. `Z^(2+)rarrZ^(4+)`
Description : Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of ... of A. (c) A is true but R is false. (d) A is false but R is true.
Last Answer : (a) Both A and R are true and R is the correct explanation of A.
Description : Component A is diffusing in a medium B. The flux NA relative to a stationary point is equal to the flux due to molecular diffusion, if (A) Mass transfer is accompanied by reaction (B ... stagnant medium B (C) Molecular mean free path is high (D) There is equimolar counter diffusion
Last Answer : (D) There is equimolar counter diffusion
Description : The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to
Last Answer : The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to A. `Mn_(2)O_(3)` B. ` ... . `MnO_(4)^(-)` D. `MnO_(4)^(-2)`
Description : The rate at which a chemical substance reacts is proportional to its (A) Active mass (B) Molecular weight (C) Equivalent weight (D) Atomic weigh
Last Answer : (A) Active mass
Description : The rate at which a chemical substance reacts is proportional to its (A) Active mass (B) Equivalent weight (C) Molecular weight (D) None of these
Description : Consider a 1°, 2° and 3° amine, all of equivalent molecular weight. Which amine is most likely to have the lowest boiling point? (a) 1° amine (b) 2° amine (c) 3° amine (d) Not enough information to determine
Last Answer : 3° amine
Description : The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their (A) Equivalent weight (B) (Equivalent weight)2 (C) Molecular weight (D) (Molecular weight)2
Last Answer : (A) Equivalent weight
Description : The law of definite proportions is not applicable to nitrogen oxide because [EAMCET 1981] (A) Nitrogen’s atomic weight is not constant (B) Nitrogen’s molecular weight is variable (C) Nitrogen’s equivalent weight is variable (D) Oxygen’s atomic weight is variable
Last Answer : (C) Nitrogen’s equivalent weight is variable
Description : Assertion (A): Kerala has low infant mortality rate. Reason (R): It has adequate provisions of basic health and educational facilities. a) Both A and R are true and R is the correct explanation of A. b) Both A ... explanation of A. c) A is correct but R is wrong. d) A is wrong but R is correct.
Last Answer : a) Both A and R are true and R is the correct explanation of A.
Description : Gastric enzyme pepsin acts only in acidic medium with in a limited pH concentration. It varies `:`
Last Answer : Gastric enzyme pepsin acts only in acidic medium with in a limited pH concentration. It varies `:` A. 1.20 to 1.80 ... C. 2.00 to 2.50 D. 1.50 to 2.60
Description : Number of moles of `MnO_(4)^(-)` required to oxidise one mole of ferrous oxalate completely in acidic medium will be
Last Answer : Number of moles of `MnO_(4)^(-)` required to oxidise one mole of ferrous oxalate completely in acidic medium ... .2 moles C. 0.6 moles D. 0.4 moles
Description : What will be n-factor for `Ba(MnO_(4))_(2)` in acidic medium? (Where it behaves as oxidant)
Last Answer : What will be n-factor for `Ba(MnO_(4))_(2)` in acidic medium? (Where it behaves as oxidant) A. 5 B. 10 C. 6 D. 3
Description : Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkal
Last Answer : Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_( ... 2) O + O_(2)) and (H_(2)O + OH^(-))`
Description : The unbalanced equation for the reaction of `P_(4)S_(3)` with nitrate in aqueous acidic medium is given below : `P_(4)S_(3)+NO_(3)^(-)rarrH_(3)PO_(4)+
Last Answer : The unbalanced equation for the reaction of `P_(4)S_(3)` with nitrate in aqueous acidic medium is given below : `P_(4) ... A. 18 B. `8//3` C. 8 D. 28
Description : The quantity of electricity requried to reduce 0.05 mol of `MnO_(4)^(-)` to `Mn^(2+)` in acidic medium would be
Last Answer : The quantity of electricity requried to reduce 0.05 mol of `MnO_(4)^(-)` to `Mn^(2+)` in acidic medium would be A. ... F B. 0.05 F C. 0.15 F D. 0.25 F
Description : In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of `CO_(2)` is
Last Answer : In the reaction of oxalate with permanganate in acidic medium, the number of electrons involved in producing one molecule of ... A. 5 B. 1 C. 2 D. 10
Description : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :
Last Answer : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is : A. `5//2` B. `2//5` C. `3//5` D. `5//3`
Description : Ethyl alcohol is the hydrolysis product in acidic medium of
Last Answer : Ethyl alcohol is the hydrolysis product in acidic medium of A. `C_(2)H_(5)Cl` B. `CH_(3)CHO` C. `C_(2)H_(4)` D. `C_(2)H_(5) MgI`
Description : Statement -1 : Sodium thiosulphate is not prepared by boiling `Na_(2)SO_(3)` with S in acidic medium. Statement -2 : `Na_(2)S_(2)O_(3)+H^(+) to 2Na++H
Last Answer : Statement -1 : Sodium thiosulphate is not prepared by boiling `Na_(2)SO_(3)` with S in acidic medium. Statement ... +H^(+) to 2Na++H_(2)SO_(3)+Sdarr`
Description : Riboflavin is heat stable in (A) Acidic medium (B) Alkaline medium (C) Neutral medium (D) Both (A) and (C)
Last Answer : Answer : D
Description : Thiamin is heat stable in (A) Acidic medium (B) Alkaline medium (C) Both (A) and (B) (D) None of these
Last Answer : Answer : A
Description : Aminoglycoside antibiotics have the following common property (a) They are primarily active against gramnegative bacilli (b) They are more active in acidic medium (c) They readily enter cells and are distributed in total body water (d) They are nearly completely metabolized in liver
Last Answer : Ans: A
Description : Which enzyme works in an acidic medium?
Last Answer : Pepsin