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BondingMedium JEE chemistry MCQ

Correct match of the $\mathbf{C}-\mathbf{H}$ bonds (shown in bold) in Column J with their BDE in Column K is \begin{center} \begin{tabular}{|l|l|} \hline Column J (Molecule) & Column K (BDE in kcal/mol) \\ \hline (P) $\mathbf{H}-\mathrm{CH}(\mathrm{CH}_3)_2$ & (i) 132 \\ \hline (Q) $\mathbf{H}-\mathrm{CH}_2\mathrm{Ph}$ & (ii) 110 \\ \hline (R) $\mathbf{H}-\mathrm{CH}=\mathrm{CH}_2$ & (iii) 95 \\ \hline (S) $\mathrm{H}-\mathrm{C} \equiv \mathrm{CH}$ & (iv) 88 \\ \hline \end{tabular} \end{center}
  1. A. $P$ - iii, $Q$ - iv, R - ii, S - i
  2. B. $P-i, Q-i i, R-$ iii, S - iv
  3. C. P - iii, Q - ii, R - i, S - iv
  4. D. $P-i i, Q-i, R-i v, S-i i i$

Solution

The correct option is **A**.

CHEMISTRY

mediumPYQ Reworded
Question
Read carefully, then pick the best option.
Correct match of the CH\mathbf{C}-\mathbf{H} bonds (shown in bold) in Column J with their BDE in Column K is
Column J (Molecule)Column K (BDE in kcal/mol)
(P) HCH(CH3)2\mathbf{H}-\mathrm{CH}(\mathrm{CH}_3)_2(i) 132
(Q) HCH2Ph\mathbf{H}-\mathrm{CH}_2\mathrm{Ph}(ii) 110
(R) HCH=CH2\mathbf{H}-\mathrm{CH}=\mathrm{CH}_2(iii) 95
(S) HCCH\mathrm{H}-\mathrm{C} \equiv \mathrm{CH}(iv) 88
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