Question

write the Nucleophilic substitution reactions of

haloalkanes​

Answer 1

Answer:

SN1 - The halogen leaves the haloalkane and the nucleophile attacks the positive charge on the carbon.

SN2 - The nucleophile attacks the carbon attached to the halogen, replacing the halogen

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Answer 2

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When a group bonded to a carbon in a substrate is replaced by another group to get a product with no change in state ofhybridization of that carbon the reaction is called substitution reaction. The C-X bond in alkyl halides is a polar covalent bond and the carbon in C-X bond is positively polarized. In other words, the C-X carbon is an electrophilic centre. It has, therefore, a tendency to react with a nucleophile. Alkyl halides react with a variety of nucleophiles to give nucleophilic substitution reactions (SN). The reaction is represented in general form as shown below. in refer to attachment

When a substrate reacts fast it is said to be reactive. The reactivity of alkyl halides in SN reaction depends upon two factors, namely, the substitution state (10, 20 or 30) of the carbon and the nature of the halogen. The order of reactivity influenced by these two factors is as shown below.tertiary alkyl halide (30) > secondary alkyl halide (20) >primary alkyl halide (10) and R - I > R - Br > R - Cl