XI Chemistry Mcqs
Energetics of Chemical Reaction – Chapter # 05 – Test 05
- Question 1 of 101. Heat absorbed by the system is completely utilized to increase the internal energy of the system. This is mathematically denoted by:
Right Answer! Good
Wrong Answer Correct Answer is : E qv
- Question 2 of 102. In endothermic reaction, the heat content of:
Right Answer! Good
Wrong Answer Correct Answer is : Products is more
- Question 3 of 103. H1 =H2 + H3 represents:
Right Answer! Good
Wrong Answer Correct Answer is : Hess's Law
- Question 4 of 104. In the reversible reaction, N2 + 3H2 2NH3 + Heat:
Right Answer! Good
Wrong Answer Correct Answer is : Forward reaction is exothermic
- Question 5 of 105. The technique of measuring heat of reaction is called:
Right Answer! Good
Wrong Answer Correct Answer is : Calorimetry
- Question 6 of 106. The reaction: N2 + 3H2 2NH3 H = - 22.4 Kael is:
Right Answer! Good
Wrong Answer Correct Answer is : Exothermic
- Question 7 of 107. The vigorous reaction that takes place when sodium reacts with water is:
Right Answer! Good
Wrong Answer Correct Answer is : Exothermic
- Question 8 of 108. When NH4CI, is dissolved in water, the solution becomes cold. This reaction is:
Right Answer! Good
Wrong Answer Correct Answer is : Endothermic
- Question 9 of 109. An example (nearest) of Isolated system:
Right Answer! Good
Wrong Answer Correct Answer is : A sealed solution in thermos flask
- Question 10 of 1010. The sum of heat and work always be the same:
Right Answer! Good
Wrong Answer Correct Answer is : This represents First law of Thermodynamics