Chemistry Chemical Energetics Test Online Mcqs Preparation

Chemistry Chemical Energetics Test Online Mcqs Preparation With Answers Start Below

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Question 1 of 15

1. The enthalpies of all elements in their standard states are
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. What is not correct about ∆Hf
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. Enthalpy of neutralization of strong acids and strong bases have same values because:
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. When a solid melts, there is:
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Choose from the following the correct statement about Born Harbor cycle
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. NaOH + HCl   →   NaCl + H2O
Enthalpy change in the above reaction is called
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. For an endothermic reaction, enthalpy of reactants:
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. Decomposition of H2O is
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. Enthalpy of formation of one mole of ionic compound form gaseous ion under standard condition is called
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. The exothermic process is
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. According to Hess’s Law, the enthalpy change for a reaction
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. Hess’s law in analogous to:
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. A hypothetical reaction X → 2Yproceeds by the following sequence of steps:
1/2X → Z   ∆H = q1Z → 2W     ∆H = q2W → 1/2Y   ∆H = q3The values for the ∆H of the reaction is
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. The enthalpy change for the reaction C2H2 + 5/2 O2 → 2CO2 + H2O is brown as enthalpy of
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. Which of the following has positive value of enthalpy:
A.
B.
C.
D.

Question 15 of 15


 

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