TS EAMCET · Chemistry · Chemical Bonding and Molecular Structure

The number of $sp$ and ${sp}^{2}$ carbon in Hepta- $1, 3$ -dien- $5$ -yne, respectively, are

A $2, 4$
B $4, 3$
C $2, 2$
D $2, 5$

Verified Solution

Answer & Solution

Correct Answer

(A) $2, 4$

Step-by-step Solution

Detailed explanation

The structure of the Hepta-1, 3-dien- 5 -yne is:- The carbon atom which has the one double bond and two single bond has the hybridisation of sp2. The carbon atom which has the triple bond and one single bond has the sp hybridisation. Hence, the number of sp and sp2 carbon…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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${NCS}^{-}$	$S^{2 -}$	$en$	${SCN}^{-}$
$I$	$II$	$III$	$IV$

The number of sp and sp2 carbon in Hepta-1, 3-dien- 5 -yne, respectively, are

Step-by-step Solution

The number of $sp$ and ${sp}^{2}$ carbon in Hepta- $1, 3$ -dien- $5$ -yne, respectively, are