Which of the following orders are correct? I. B.E. : ${C}-{C} {H}-{Cl}>{H}-{Br}>\mathrm{H}-$ I III. B.E. $: s p-s p>s p^2-s p^2>s p^3-s p^3$ IV. $B . E .: {C} \equiv {C}>{C} \equiv {N}>{N} \equiv {N}$

JEE CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

1 Easy

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Analyzing +4 | -1

Which of the following orders are correct?

I. B.E. :

{C}-{C}<{C}={C}<{C} \equiv {C}

II. B.E. :

{H}-{F}>{H}-{Cl}>{H}-{Br}>\mathrm{H}-

I

III. B.E.

: s p-s p>s p^2-s p^2>s p^3-s p^3

IV.

B . E .: {C} \equiv {C}>{C} \equiv {N}>{N} \equiv {N}

View answer and explanation

Correct option: D

I, II and III only

Option D (I, II and III only) is correct because the bond energy order for C≡C, C≡N, and N≡N is C≡C < C≡N < N≡N.