Question

Khaheer see the following attachment.​

Answer 1

Answer:

5×2-(3-(5-(7+2 (-15))

=10-(3-5-(7-30))

=10-(3-5-(-21))

=10-(3-5+21)

=10-(24-5)

=10-(19)

=10-19

= -9

Answer 2

$\sf\huge\bold\pink{Answer:}$

As C-X bond in aryl halide acquires a partial double bond character due to resonance while the C-X bond in alkyl halide is a pure single bond. Hence,Bond Strength of Haloarenes is more than that of Haloalkanes. So, Haloarenes are less reactive than Haloalkanes towards nucleophilic substitution.