Haloalkanes and Haloarenes · Chemistry · NEET

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) :

undergoes $S_N 2$ reaction faster than

Reason (R) : lodine is a better leaving group because of its large size. In the light of the above statements, choose the correct answer from the options given below:

The major product of the following reaction is

The major product $$\mathrm{C}$$ in the below mentioned reaction is:

$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} \xrightarrow[\Delta]{\text { alc. } \mathrm{KOH}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\Delta]{\text { aq. } \mathrm{KOH}} \mathrm{C}$$

The following reaction method

is not suitable for the preparation of the corresponding haloarene products, due to high reactivity of halogen, when X is :

The compound that will undergo S_N1 reaction with the fastest rate is

Identify the major product C formed in the following reaction sequence :

$$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{I} \xrightarrow{\mathrm{NaCN}} \mathrm{A} $$

$$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Partial\,hydrolysis}^{O{H^ - }}} B\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{B{r_2}}^{NaOH}} \mathop C\limits_{(major)}}$$

Which amongst the following reactions of alkyl halides produces isonitrile as a major product?

(A) $$\mathrm{R-X+HCN\to}$$

(B) $$\mathrm{R-X+AgCN\to}$$

(C) $$\mathrm{R-X+KCN\to}$$

(D) $$\mathrm{R-X+NaCN\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{{C_2}{H_5}OH}^{{H_2}O}}}$$

Choose the most appropriate answer from the options given below:

Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.

Identify the product in the following reaction

Identify 'X' in the following reaction.

The given compound

is an example of _________.