NEET 2018 · ChemistryHybridisationPrevious Year Question

Which of the following molecules represents the order of hybridisation $s p^{2}$ , $s p^{2}$ , $s p$ , $s p$ from left to right atoms?

Answer: (B) $CH X_{2} = CH - C \equiv CH$ . \textbf{Answer:} (B) $CH X_{2} = CH - C \equiv CH$ \textbf{Solution:} In $CH X_{2} = CH - C \equiv CH$ : C1 ( $= CH X_{2}$ ) is $s p^{2}$ , C2 ( $= CH X^{-}$ ) is $s p^{2}$ , C3 (triple-bonded C) is $s p$ , C4 (terminal $\equiv CH$ ) is $s p$ , giving $s p^{2}$ , $s p^{2}$ , $s p$ , $s p$ from left to right.

A. $CH X_{2} = CH - CH = CH X_{2}$
B. $CH X_{2} = CH - C \equiv CH$ ✓
C. $CH \equiv C - C \equiv CH$
D. $CH X_{3} - CH = CH - CH X_{3}$

Correct Answer

(B) $CH X_{2} = CH - C \equiv CH$

Solution & Explanation

\textbf{Answer:} (B) $CH X_{2} = CH - C \equiv CH$ \textbf{Solution:} In $CH X_{2} = CH - C \equiv CH$ : C1 ( $= CH X_{2}$ ) is $s p^{2}$ , C2 ( $= CH X^{-}$ ) is $s p^{2}$ , C3 (triple-bonded C) is $s p$ , C4 (terminal $\equiv CH$ ) is $s p$ , giving $s p^{2}$ , $s p^{2}$ , $s p$ , $s p$ from left to right.

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Which of the following molecules represents the order of hybridisation sp2, sp2, sp, sp from left to right atoms?

Solution & Explanation

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Which of the following molecules represents the order of hybridisation $s p^{2}$ , $s p^{2}$ , $s p$ , $s p$ from left to right atoms?