Consider the reaction,
$CH_3CH_2CH_2Br + NaCN \to CH_3CH_2CH_2CN + NaBr$
This reaction will be the fastest in

Select the correct decreasing order of boiling points of compounds from the following.

Which of the following reactions is an example of a nucleophilic substitution reaction?

Which of the following compounds is obtained when $t$-butyl bromide is treated with alcoholic ammonia?

Arrange the following compounds in order of decreasing rate of hydrolysis for $SN_1$ reaction:
$(I)$ $C_6H_5CH_2Br$
$(II)$ $p-CH_3-C_6H_4-CH_2Br$
$(III)$ $p-(CH_3)_2CH-C_6H_4-CH_2Br$
$(IV)$ $p-CH_3CH_2-C_6H_4-CH_2Br$

Which of the following reagents,when heated with ethyl chloride,forms ethylene?