MCQ
$C{H_3}C{H_2}CH = C{H_2}$ and $C{H_3} - CH = CH - C{H_3}$ show
- AChain isomerism
- ✓Position isomerism
- CFunctional isomerism
- DMetamerism
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$B.E. (H-H) = x_1 ; B.E. (O = O) = x_2$ ;
$B.E. (O -H) = x_3$
Heat of vaporisation of water $= x_4$ then $\Delta {H_f}$ [heat of formation of liquid water] is