Published by:
CGP EDU Academic Team
Published on: August 14, 2026
How many of the following have standard heat of formation is zero.
(i) Br 2( l ) (ii) CO 2 (g)
(iii) C (graphite) (iv) Cl 2( l )
(v) Cl 2(g) (vi) F 2(g)
(vii) F (g) (viii) I 2(g)
(ix) S (monoclinic) (x) N 2(g)
(xi) P (Black) (xii) P (red)
(xiii) CH 4
Text Solution
Verified by ExpertsThe correct answer is:
5
(5)
Br 2 ( λ ); C(graphite); F 2 (g); N 2 (g) : Cl 2 (g) are exist in most stable form so, it’s standard heat of formation is zero.
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