EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Equilibrium>AMU-AT (B.Tech.) 2019>Q 8

MEDIUM

AMU-AT (B.Tech.)

IMPORTANT

Earn 100

An aqueous solution in which the $H^{+}$ ion concentration is greater than $10^{- 7} M$ is said to be

50% studentsanswered this correctly

Important Questions on Equilibrium

MEDIUM

AMU-AT (B.Tech.)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Equilibrium>AMU-AT (B.Tech.) 2018>Q 1

The

K_{sp}

of

{PbCO}_{3}

and

{MgCO}_{3}

are

15 \times 10^{- 15}

and

1 \times 10^{- 15}

, respectively at

298 K

. The concentration of

{Pb}^{2 +}

ions in a saturated solution containing

{MgCO}_{3}

and

{PbCO}_{3}

is

EASY

AMU-AT (B.Tech.)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Equilibrium>AMU-AT (B.Tech.) 2017>Q 2

For

{NH}_{4} HS (s) ⇌ {NH}_{3} (g) + H_{2} S (g)

the
observed pressure for the reaction mixture in equilibrium is

1.12 atm

at

106 ° C

. What is the value of

K_{p}

for the reaction?

EASY

AMU-AT (B.Tech.)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Equilibrium>AMU-AT (B.Tech.) 2017>Q 3

For a buffer of a mixture of

0.12 mol L^{- 1}

{CH}_{3} COOH

and

0.12 mol L^{- 1} {CH}_{3} COONa,

the buffer capacity is

EASY

AMU-AT (B.Tech.)

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 5 - Equilibrium>AMU-AT (B.Tech.) 2018>Q 4

The reaction quotient $(Q)$ for the reduction of $O_{2}$ to $H_{2} O$ in acid solution,
$O_{2} (g) + 4 H^{+} (aq) + 4 e^{-} ⟶ 2 H_{2} O (l)$ is,
[where, $α_{H^{+}} =$ activity of $H^{+}, p_{O_{2}} =$ pressure of $O_{2}$ when it is present in the reaction, $p ° =$ pressure of $O_{2}$ at standard state].