1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Peroxide effect is observed with the addition of $$\mathrm{HBr}$$ but not with the addition of HI to unsymmetrical alkene because

A
$$\mathrm{H}-\mathrm{I}$$ bond is stronger than $$\mathrm{H}-\mathrm{Br}$$ and is not cleaved by the free radical
B
$$\mathrm{H}-\mathrm{I}$$ bond is weaker than $$\mathrm{H}-\mathrm{Br}$$ bond so that iodine free radicals combine to form iodine molecules
C
Bond strength of $$\mathrm{HI}$$ and $$\mathrm{HBr}$$ are same but free radicals are formed in $$\mathrm{HBr}$$
D
All of the above
2
KCET 2021
MCQ (Single Correct Answer)
+1
-0

The order of reactivity of the compounds $$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}, \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{CH}_3\right) \mathrm{Br}$$ and $$\mathrm{C}_6 \mathrm{H}_5 \mathrm{C}\left(\mathrm{CH}_3\right)\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}$$ in $$\mathrm{S}_{\mathrm{N}} 2$$ reaction is

A
KCET 2021 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 1
B
KCET 2021 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 2
C
KCET 2021 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 3
D
KCET 2021 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 4
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