Organic Chemist...

Consider the reactions
(i) $(CH_3)_2CH - CH_2Br$
    $\xrightarrow{C_2H_3OH}(CH_3)_2CH - CH_2OC_2H_5 +HBr$
(ii) $(CH_3)_2CH - CH_2Br$
    $\xrightarrow{C_2H_3O^-}(CH_3)_2CH - CH_2OC_2H_5 +HBr$
The mechanisms of reactions(i) and (ii) are respectively.

Give $IUPAC$ names of following alkyl group.

$IUPAC$ name of the hydrocarbon $(A)$ is:

Based on "$1993$ Recommendations" $H_2C=CHCH_2CH_2CH_3$ is named as:

Which of the following substrate is most reactive towards methoxide ion ($Me=\overset{\ominus}{O}$)?

IUPAC name of the formula $CH_2(COOH)_2$ is ?

Question

A number of functional group and degree of unsaturation (respectively) in the above compounds is:

Compound $(A)$ is:

Which of the following molecules contains only $\pi$ bond?