CUET Level- II NEET Mock test -5 ( Chemistry)

A quantity of PCl₅ was heated in a vessel at 250 degree Celsius. At equilibriumThe vessel contain 0.1 mole of PCl₅0.20 pcl₃and 0.2 mole of cl₂ if the total pressure is 2 atmosphere then equilibrium constant K_p of the reaction is

• 0.02

• 0.8

• 0.04

• 1.6

Tags

Equilibrium

50 ml of 2 N acetic acid is mixed with 10 ml of 1 N sodium acetate solution.The solution will have an approximate pH of (K_a=10^-5 for acetic acid)

• 4

• 5

• 6

• 7

Tags

Equilibrium

The value of ionic product constant for water K_w at 60^oC is 9.6x10^-14M². what is the concentration of H⁺ of a neutral solution at 60⁰C and the nature of an aqueous solution with a P^H=7.0 at 60⁰C.

• 3.1x10^-8,Acidic

• 3.1x10^-7, Neutral

• 3.1x10^-8, basic

• 3.1x10^-7, basic

Tags

Equilibrium

A real gas most closely approaches the behaviour of an ideal gas at

• 15 atm on a 200 Kelvin

• 1 atm and 273 Kelvin

• 0.5 atm and 500 Kelvin

• 15 atm and 500 Kelvin

Tags

Equilibrium

Which of the following gases will have the highest rate of diffusion?₂₂

• O₂

• CO₂

• NH₃

• N₂

Tags

Equilibrium

For homogeneous gas reaction, constant k_c has the unit of

• (mol L^-1)¹

• (mol L^-1)^-1

• (mol L^-1)⁰

• (mol L^-1)¹⁰

Tags

Equilibrium

For the reaction at equilibrium concentration of H₂ ^, I₂ are 2M 0.5 M, 0.5 M respectively then value of K_p will be

• 1/8

• 1/16

• 1/2

• 1/32

Tags

Equilibrium

What is the K_p for the reaction?

• 16x (800R)²

• (800R/16)^-2

• (1/4x800R)²

• 16x800R²

Tags

Equilibrium

Calcium carbonate is taken in a 1 L vessel and heated up to 1000 K the K_p for the reaction is 1.5 atm . calculate moles of CaO present at equilibrium

• 0.018

• 0.009

• 0.036

• 0.027

Tags

Equilibrium

What is the hydronium ion concentration of a 0.25M HA solution? ( K_a= 4x10^-8).

• 10^-4

• 10^-5

• 10^-7

• 10^-10

Tags

Equilibrium