Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 4

HARD

JEE Main

IMPORTANT

Earn 100

Assertion: The addition of an inert gas at a constant volume may affect the state of the equilibrium: ${PCl}_{5} (g) ⇌ {PCl}_{3} (g) + {Cl}_{2} (g)$

Reason: The addition of an inert gas at a constant volume increases both the number of molecules and the pressure to the same extent.

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Important Questions on Equilibrium

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 5

In which of the following solvents will

AgBr

have the highest solubility?

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 6

Which of the following mixtures will have

pH

equal to

2.0

if the normalities of

HCl

and

NaOH

are

0.1 N

?

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 7

The

pH

of a

0.1 M

solution of the following salts increases in the water,

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 8

Which of the following statement is correct?

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 9

For the reaction,

CO (g) + H_{2} O (g) ⇋ {CO}_{2} (g) + H_{2} (g)

at a given temperature, the equilibrium amount of

{CO}_{2}

can be increased by

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 10

The rapid change of

pH

near the stoichiometric point of an acid-base titration is the basis of indicator detection. The

pH

of the solution is related to ratio of the concentration of the conjugate acid

(HIn)

and base

({In}^{-})

forms of the indicator by the expression:

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 11

When a drop of concentrated

HCl

solution is added to one liter of pure water at

25 ° C,

the

pH

drops from

7

to about

4

. When the second drop of the same

HCl

solution is added, the

pH

further drops to about:

HARD

JEE Main

IMPORTANT

Chemistry Crash Course JEE Main>Chapter 12 - Equilibrium>Level 3>Q 12

The $pH$ of the solution when $0.2 mole$ of $HCl$ is added to one litre of a solution containing $1 M {CH}_{3} COOH$ and $1 M {CH}_{3} {COO}^{-}$ is:

(Assume $K_{a}$ for ${CH}_{3} COOH = 1.8 \times 10^{- 5}$ )