The reaction of chloroform with concentrated $HNO_3$ yields ........

In solvolysis of $1,2$-dimethylpropyl $p$-toluenesulfonate in acetic acid at $75\,^oC$,how many (alkene + substitution) products will be formed?

Which of the following is not a product of the given reaction?
$1$-chloro-$2$-methylcyclohexane $\xrightarrow{C_2H_5OH/\Delta}$ ?

An organic compound $A$ $(C_4H_9Cl)$ on reaction with $Na$/dry ether gives a hydrocarbon which on monochlorination gives only one chloro derivative. What is $A$?

Match the following:

Reactants	Products
$A$. $C_2H_5Cl$,moist $Ag_2O$	$I$. $CH_3CH_2ONO$
$B$. $C_2H_5Cl$,aqueous ethanolic $AgCN$	$II$. $C_2H_4$
$C$. $C_2H_5Cl$,aqueous ethanolic $AgNO_2$	$III$. $CH_3CH_2OH$
$D$. $C_2H_5Cl$,ethanolic $KOH$	$IV$. $CH_3CH_2NC$

The correct match is:

Which of the following compounds has the highest reactivity towards $S_N2$ reaction?