Haloalkanes and...

Out of the following, the alkene that exhibits optical isomerism is:

Which of  the following reactions is not correctly matched?

Arrange the following alkyl halides in decreasing order of the rate of $$\beta$$-elimination reaction with alcoholic $$KOH$$. 
(I) $$ CH_{ 3 }-\overset { \overset { H }{ | }  }{ \underset { \underset { CH_{ 3 } }{ | }  }{ C }  } -CH_{ 2 }Br$$
(II) $$CH_3-CH_2-Br$$
(III)  $$CH_3-CH_2-CH_2-Br$$

Ethyl iodide and n-propyl iodide are allowed to undergo Wurtz reaction. The alkane which will not be obtained in this reaction is:

Which of alkyl halides exhibits complete racemisation in $$S_N1$$ reaction?

Match the reaction given in column I and II :

Which of the following alkane cannot be prepared by Wurtz's reaction in good yield?

Which of the following alkyl halides will undergo $$S_N1$$ reaction most readily?

Match the column I with column II.

In which of the following reactions, it proceeds via free radical mechanism?