Question

Choose the correct pair Bond
(a) C-H (i) 464
(b) O-H (ii) 569
(c) F-H (iii) 293
(d) Si-H (iv) 414

• A. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
• B. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
• C. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
• D. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
• E. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)

Hint:

Memorize common bond enthalpy values for quick solving.

Answer 1

The Correct Option is D

Concept:
• Standard bond enthalpy values

Step 1: Recall values
C-H $\approx 414$
O-H $\approx 464$
F-H $\approx 569$
Si-H $\approx 293$

Step 2: Match
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii) Final Conclusion:
Option (D)