Haloalkanes and...

The major product of the elimination is 

identify the optically active compound of the following

If dichloromethane (DCM) and water $$ \left(\mathrm{H}_{2} \mathrm{O}\right)  $$ are used for differential extraction, which one of the following statements is correct?

Which is incorrect reactivity order towards nucleophilic reaction?

A enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon. The ester formed will be

statement I : Iodination of methane is carried out in presence of $${ HNO }_{ 3 }$$ or $${ HIO }_{ 3 }$$
statement II : $${ HNO }_{ 3 }$$ or $${ HIO }_{ 3 }$$ oxides HI to $${ I }_{ 2 }$$ to prevent backwards reactions.

If isopropyl chloride and ethyl chloride both react with Na in presence of dry ether which alkanes will be obtained?

Which if the following alkane is not produced when the mixture methyl chloride and ethyl chloride is subjected to wurtz reaction?

The order of reactivity of alkyl halides in Wurtz reaction is