NH_4CN is a salt of weak acid HCN( K_a = 6.2 10^ - 10 ) and a weak base NH_4OH( K_b = 1.8 10^ - 5 ). A one molar solution of NH_4CN will be

nh4cn is a salt of weak acid hcn ka 62 times 10 pow 10 and

$$N{H_4}CN$$ is a salt of weak acid $$HCN\left( {{K_a} = 6.2 \times {{10}^{ - 10}}} \right)$$ and a weak base $$N{H_4}OH\left( {{K_b} = 1.8 \times {{10}^{ - 5}}} \right).$$ A one molar solution of $$N{H_4}CN$$ will be

A. neutral

B. strongly acidic

C. strongly basic

D. weakly basic

Answer : weakly basic

Solution :
Since $${K_b} > {K_a},$$ the solution will be slightly basic.

Releted MCQ Question on
Physical Chemistry >> Ionic Equilibrium

Releted Question 1

Molten sodium chloride conducts electricitry due to the presence of

A. free electrons

B. free ions

C. free molecules

D. atoms of sodium and chlorine

View Answer

Releted Question 2

An acidic buffer solution can be prepared by mixing the solutions of

A. ammonium acetate and acetic acid

B. ammonium chloride and ammonioum hydroxide

C. sulphuric acid and sodium sulphate

D. sodium chloride and sodium hydroxide.

View Answer

Releted Question 3

The $$pH$$ of a 10^-8 molar solution of $$HCl$$ in water is

A. 8

B. -8

C. between 7 and 8

D. between 6 and 7

View Answer

Releted Question 4

Of the given anions, the strongest Bronsted base is

A. $$CI{O^ - }$$

B. $$CIO_2^ - $$

C. $$CIO_3^ - $$

D. $$CIO_4^ - $$

View Answer

$$N{H_4}CN$$ is a salt of weak acid $$HCN\left( {{K_a} = 6.2 \times {{10}^{ - 10}}} \right)$$ and a weak base $$N{H_4}OH\left( {{K_b} = 1.8 \times {{10}^{ - 5}}} \right).$$ A one molar solution of $$N{H_4}CN$$ will be

Releted MCQ Question on
Physical Chemistry >> Ionic Equilibrium

Molten sodium chloride conducts electricitry due to the presence of

An acidic buffer solution can be prepared by mixing the solutions of

The $$pH$$ of a 10^-8 molar solution of $$HCl$$ in water is

Of the given anions, the strongest Bronsted base is

Practice More Releted MCQ Question on
Ionic Equilibrium

Practice More MCQ Question on Chemistry Section

$$N{H_4}CN$$ is a salt of weak acid $$HCN\left( {{K_a} = 6.2 \times {{10}^{ - 10}}} \right)$$ and a weak base $$N{H_4}OH\left( {{K_b} = 1.8 \times {{10}^{ - 5}}} \right).$$ A one molar solution of $$N{H_4}CN$$ will be

Releted MCQ Question on Physical Chemistry >> Ionic Equilibrium

Molten sodium chloride conducts electricitry due to the presence of

An acidic buffer solution can be prepared by mixing the solutions of

The $$pH$$ of a 10-8 molar solution of $$HCl$$ in water is

Of the given anions, the strongest Bronsted base is

Practice More Releted MCQ Question on Ionic Equilibrium

Practice More MCQ Question on Chemistry Section

Releted MCQ Question on
Physical Chemistry >> Ionic Equilibrium

The $$pH$$ of a 10^-8 molar solution of $$HCl$$ in water is

Practice More Releted MCQ Question on
Ionic Equilibrium