Home
Class 12
CHEMISTRY
Assertion:- Degree of hydrolysis and pH ...

Assertion`:-` Degree of hydrolysis and pH of a `WAWB` salt is independent of initial concentration of salt.
Reason`:-` The solution of `NH_(4)CN` in water has pH slightly greater than ?

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are False

Text Solution

Verified by Experts

The correct Answer is:
B

`N//A`
Promotional Banner

Similar Questions

Explore conceptually related problems

Determine the degree of hydrolysis and hydrolysis constant of aniline hydrochloride in M//32 solution of salt at 298K from the following cell data at 298K . Pt|H_(2)(1atm)|H^(+) (1M)||M//32 C_(6)H_(5)NH_(3)CI |H_(2)(1atm)|Pt, E_(cell) = -0.188V .

100mL CuSO_(4)(aq) was electrolyzed using inert electrodes by passing 0.965A till the pH of the resulting solution was 1. The solution after electrolysis was neutralized, treated with excess KI and titrated with 0.04M Na_(2)S_(2)O_(3) . Volume of Na_(2)S_(2)O_(3) required was 35mL . Assuming no volume change during electrolysis, calculate: (a) duration of electrolysis if current efficiency is 80% (b) initial concentration (M) of CuSO_(4) .

Answer carefully: (a) Two large conducting spheres carrying charges Q_(1) and Q_(2) are brought close to each other. Is the magnitude of electrostatic force between them exactly given by Q_(1),Q_(2)//4pi epsilon_(0)r^(2) , where r is the distance between their centres? (b) If Coulomb’s law involved 1//r^(3) dependence (instead of would Gauss’s law be still true ? (c) A small test charge is released at rest at a point in an electrostatic field configuration. Will it travel along the field line passing through that point? (d) What is the work done by the field of a nucleus in a complete circular orbit of the electron? What if the orbit is elliptical? (e) We know that electric field is discontinuous across the surface of a charged conductor. Is electric potential also discontinuous there? (f) What meaning would you give to the capacitance of a single conductor? (g) Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).