EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 5th May 2019>Q 10

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Earn 100

Conjugate base for Bronsted acids $H_{2} O$ and $HF$ are:

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Important Questions on Equilibrium

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 5th May 2019>Q 11

Which will make basic buffer?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 6th May 2018>Q 12

Following solutions were prepared by mixing different volumes of

NaOH

and

HCl

of different concentrations.

(i)

60 mL \frac{M}{10} HCl + 40 mL \frac{M}{10} NaOH

(ii)

55 mL \frac{M}{10} HCl + 45 mL \frac{M}{10} NaOH

(iii)

75 mL \frac{M}{5} HCl + 25 mL \frac{M}{5} NaOH

(iv)

100 mL \frac{M}{10} HCl + 100 mL \frac{M}{10} NaOH

The

pH

of which one of them will be equal to

1

?

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 6th May 2018>Q 13

The solubility of

{BaSO}_{4}

in water is

2 .42 \times 10^{- 3} {gL}^{- 1}

at

298 K .

The value of its solubility product

(K_{sp})

will be

(Given- the molar mass of

{BaSO}_{4} = 233 g {mol}^{- 1}

)

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 6th May 2018>Q 14

Which one of the following conditions will favour the maximum formation of the product in the reaction?

A_{2} (g) + B_{2} (g) ⇌ X_{2} (g) Δ_{r} H = - x kJ

HARD

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 7th May 2017>Q 15

A

20 litre

container at

400 K

contains

{CO}_{2} (g)

at pressure

0.4 atm

and an excess of

SrO

(neglect the volume of solid

SrO

). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when the pressure of

{CO}_{2}

attains its maximum value, will be:

(Given that : {SrCO}_{3} (s) ⇌ SrO (s) + {CO}_{2} (g), K_{p} = 1 .6 atm)

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 7th May 2017>Q 16

The equilibrium constants of the following are:

\begin{matrix} N_{2} + 3 H_{2} ⇌ 2 {NH}_{3} & K_{1} \\ N_{2} + O_{2} ⇌ 2 NO & K_{2} \\ H_{2} + \frac{1}{2} O_{2} \to H_{2} O & K_{3} \end{matrix}

The equilibrium constant (

K

) of the reaction:

2 N H_{3} + \frac{5}{2} O_{2} \overset{K}{⇌} 2 N O + 3 H_{2} O

, will be:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 7th May 2017>Q 17

Concentration of the

{Ag}^{+}

ions in a saturated solution of

{Ag}_{2} C_{2} O_{4}

is

2.2 \times 10^{- 4} mol L^{- 1}

. Solubility product of

{Ag}_{2} C_{2} O_{4}

is:

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 7 - Equilibrium>NEET - 7th May 2017>Q 18

Which one of the following statements is not correct?