Engineering Chemistry · all questions

Chemical and Ionic Equilibrium
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

Questions

1/1

Page

Pick an option on a question to see the right answer and solution.

In the mixture obtained by mixing 25.0 mL × 1.2 × 10^-3 MMnCl₂ and 35.0 mL of 6.0 × 10^-4 M KCl solution, the concentration (M) of Mn²⁺, K⁺ and CI^- ions respectively are

Select an option to see the answer and solution.

Open question

An aqueous solution containing m moles of non-volatile solute freezes at -0.186°C. The elevation in the boiling point of the same aqueous solution (K_f = 1.86°, K_b = 0.512°) would be

Select an option to see the answer and solution.

Open question

Among the following, the equilibrium which is not affected by an increase in pressure is

Select an option to see the answer and solution.

Open question

The number of degrees of freedom for a system consisting of NaCl(s), Na⁺ (aq) and Cl^- (aq) at equilibrium is

Select an option to see the answer and solution.

Open question

As per the kinetic theory of ideal gases, which of the following statements is not correct?

Select an option to see the answer and solution.

Open question

The number of degrees of freedom of a system consisting of solid sucrose in equilibrium with an aqueous solution of sucrose is

Select an option to see the answer and solution.

Open question

For an ideal gas,

Select an option to see the answer and solution.

Open question

If a gas obeys equation of state p(V - nb) = nRT, the ratio

\frac{( C _{p} - C _{V} )}{( C _{p} - C _{V} ) _{ideal}}

Select an option to see the answer and solution.

Open question

The internal pressure of a van der Waals gas is

Select an option to see the answer and solution.

Q10

Open question

Under the equilibrium conditions for the reaction, C(s) + CO₂(g)

⇌

2CO(g), the total pressure is 12 atm. The value of K_p is

Select an option to see the answer and solution.

Q11

Open question

Chemical and Ionic Equilibrium mcq question image

According to the Ehrenfest classification of phase transition the above diagram refers to

Select an option to see the answer and solution.

Q12

Open question

For 1 mol of a monoatomic ideal gas, the relation between pressure (p), volume (V) and average molecular kinetic energy

(ε)

Select an option to see the answer and solution.

Q13

Open question

For the pair of reactions given below,
(i) N₂(g) + 3H₂(g)

⇌

2NH₃(g)
(ii)

\frac{1}{2}

N₂(g) +

\frac{3}{2}

H₂(g)

⇌

NH₃(g)
If at a particular temperature, K_p1 and K_p2 are the equilibrium constants for reactions (i) and (ii) respectively then

Select an option to see the answer and solution.

Q14

Open question

The Bronsted acidity of boron hydrides follows the order

Select an option to see the answer and solution.

Q15

Open question

The pH of buffer solution containing 4 × 10^-3 and 0.4 moles of acetic acid (pK_a = 4.76) and sodium acetate respectively will be

Select an option to see the answer and solution.

Q16

Open question

The freezing point constant for water is 1.86 K (mol/kg)^-1. The freezing point when 0.01 mol glucose is added to 1 kg water is

Select an option to see the answer and solution.

Q17

Open question

On the pressure-temperature diagram for a one-component system, the point where the solid-liquid and the liquid-gas curves intersect is

Select an option to see the answer and solution.

Q18

Open question

The triple point for water is

Select an option to see the answer and solution.

Chemical and Ionic Equilibriumpractice.

Chemical and Ionic Equilibrium
practice.