Chemistry-Enthalpy
NEET Chemistry Enthalpy Match the Following Question
Type: Match the Following-match the column-Hard-Class 11
Match Column-I with Column-II.
Column-I Column-II (a) Exothermic reaction (i) ∆ r H = +33.2 kJ mol –1 (b) Endothermic reaction (ii) ∆ r H = –285.8 kJ mol –1 (c) Heat evolved (iii) ∆ r H < 0 (d) Heat absorbed (iv) ∆ r H > 0
Choose the correct matching:
A
a-ii, b-i, c-iii, d-iv
B
a-i, b-ii, c-iv, d-iii
C
a-iii, b-iv, c-i, d-ii
D
a-iv, b-iii, c-ii, d-i
Correct Answer
Option A
Detailed Explanation
In an exothermic reaction, heat is evolved, leading to a negative enthalpy change (∆ r H < 0), which corresponds to ∆ r H = –285.8 kJ mol –1 for water formation. Conversely, an endothermic reaction absorbs heat (∆ r H > 0).
Found an issue with this question?