XI Chemistry Mcqs
Chemical Equilibrium – Chapter # 06 – Test 01
- Question 1 of 101. Which of the following reaction is reversible and endothermic:
Right Answer! Good
Wrong Answer Correct Answer is : N2 O2 Heat 2NO
- Question 2 of 102. For the reaction H2 I2 2HI the equilibrium constant Kc changes with:
Right Answer! Good
Wrong Answer Correct Answer is : Temperature
- Question 3 of 103. In the equilibrium N2 3H2 2NH3 (∆H - 46.2KJ/mole) the formation of NH3 is favored by:
Right Answer! Good
Wrong Answer Correct Answer is : Increasing the pressure
- Question 4 of 104. The Oxidation of SO2 by O2 to SO3 is an exothermic reaction. The yield of SO3 will be maximum if:
Right Answer! Good
Wrong Answer Correct Answer is : Temperature is reduced and kept at optimum temperature at high pressure
- Question 5 of 105. A chemical reaction is said to at equilibrium when the rate of forward and backward reactions is:
Right Answer! Good
Wrong Answer Correct Answer is : equal
- Question 6 of 106. The active of 64 gms of HI (at mass of I 127) in two litre flask would be:
Right Answer! Good
Wrong Answer Correct Answer is : 0.25
- Question 7 of 107. 0.333 mole of ethyl alcohol and 0.333 mole of acetic acid are in equilibrium with 0.666 mole of ester and water. The equilibrium, Kq for the reaction will be:
Right Answer! Good
Wrong Answer Correct Answer is : 4
- Question 8 of 108. For a reversible system 3A 2B C, the Kc expression will be:
Right Answer! Good
Wrong Answer Correct Answer is : KC C / A3 B2
- Question 9 of 109. A chemical reaction is at equilibrium when:
Right Answer! Good
Wrong Answer Correct Answer is : The rate of forward and backward reactions is equal
- Question 10 of 1010. According to Le-Chatlier's Principle, adding heat to a reversible exothermic process:
Right Answer! Good
Wrong Answer Correct Answer is : Will increase the backward reaction