(C) $AgCN$ is covalent in nature,not ionic.Because of its covalent nature,the nitrogen atom is the only nucleophilic site available to attack the alky

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(C) $AgCN$ is covalent in nature,not ionic.Because of its covalent nature,the nitrogen atom is the only nucleophilic site available to attack the alkyl halide,leading to the formation of isocyanide $(R-NC)$.In contrast,$KCN$ is ionic and provides the cyanide ion $(CN^-)$,which attacks via the carbon atom to form cyanide $(R-CN)$.Therefore,the Assertion $(A)$ is true,but the Reason $(R)$ is false.

Class 12 Chemistry Haloalkanes and Haloarenes Properties of Haloalkanes

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Assertion $(A)$: $1-$Bromopentane reacts with $AgCN$ to give pentylisocyanide.
Reason $(R)$: $AgCN$ is mainly ionic in nature.

AP EAMCET 2022 All AP EAMCET

A
$A$ is true,$R$ is true and $R$ is correct explanation of $A$
B
$A$ is true,$R$ is true but $R$ is not correct explanation of $A$
C
$A$ is true,$R$ is false
D
$A$ is false,$R$ is true

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Haloalkanes and Haloarenes

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Properties of Haloalkanes

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Assertion $(A)$: $1-$Bromopentane reacts with $AgCN$ to give pentylisocyanide.Reason $(R)$: $AgCN$ is mainly ionic in nature.

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$1,2-\text{dichloroethane} + NaSCH_2CH_2SNa \to C_4H_8S_2 + (P)$Unknown product $(P)$ of the above reaction is

An isomer of $C_3H_6Cl_2$ on boiling with aqueous $KOH$ gives acetone. Hence,the isomer is

The correct reactivity order for $E_2$ reaction with alcoholic $KOH$ will be:$(i)$ $3-$chlorocyclohexene derivative (conjugated system)(ii) $1-$chlorodecalin derivative (with double bond)(iii) $1-$chlorodecalin (saturated)

When chloroform is treated with conc. $HNO_3$,it gives:

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Assertion $(A)$: $1-$Bromopentane reacts with $AgCN$ to give pentylisocyanide.
Reason $(R)$: $AgCN$ is mainly ionic in nature.

$1,2-\text{dichloroethane} + NaSCH_2CH_2SNa \to C_4H_8S_2 + (P)$
Unknown product $(P)$ of the above reaction is

The correct reactivity order for $E_2$ reaction with alcoholic $KOH$ will be:
$(i)$ $3-$chlorocyclohexene derivative (conjugated system)
(ii) $1-$chlorodecalin derivative (with double bond)
(iii) $1-$chlorodecalin (saturated)