Preparation Method of Alkanes

The correct statement regarding the comparison of staggered and eclipsed conformations of ethane is?

Arrange the following compounds in decreasing order of reactivity in ${\mathrm{SN}}^1$ reaction :

Kolbe's electrolysis of a mixture of pot. propanoate and pot. $3$-methylbutanoate gives:

Which of the following group is ortho para director?

Benzene reacts with ${\mathrm{CH}}_3\mathrm{Cl}$ in the presence of anhydrous ${\mathrm{AICl}}_3$, to form:  

$3$-Phenylpropene on reaction with $\mathrm{HBr}$ gives (as a major product)

Which of the following conformers for ethylene glycol is most stable?

Reaction of $\mathrm{HBr}$ with propene in the presence of peroxide gives: