MCQ
$ - C \equiv C - $ bond is found in
- AEthene
- BButene
- ✓Ethyne
- DGlycerine
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$A.$ Phenol $B.$ Cresol
$C.\, m-$ Nitrophenol $D.\, p-$ Nitrophenol
Given : $K_b(H_2O) = 0.51\, Kkg \,mol^{-1}$
$N_A = 6 × 10^{23}$
$[Li = 7, \,\,Na = 23$, $K = 39,\,\, Rb = 85.5$ , $Cs = 133, \,\,Cl = 35.5]$