JEE Main 2020 (Online) 7th January Evening Slot | Haloalkanes and Haloarenes Question 33 | Chemistry

JEE Main 2020 (Online) 7th January Evening Slot

MCQ (Single Correct Answer)

-1

For the following reactions

JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Haloalkanes and Haloarenes Question 33 English

K_s and K_e, are respectively, the rate constants for substitution and elimination and $$\mu = {{{k_s}} \over {{k_e}}}$$ the correct options is

$${\mu _B} > {\mu _A}$$ and K_e(A) > K_e(B)

$${\mu _A} > {\mu _B}$$ and K_e(B) > K_e(A)

$${\mu _B} > {\mu _A}$$ and K_e(B) > K_e(A)

$${\mu _A} > {\mu _B}$$ and K_e(A) > K_e(B)

JEE Main 2020 (Online) 7th January Morning Slot

MCQ (Single Correct Answer)

-1

1- methyl ethylene oxide when treated with an excess of HBr produces :

JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Haloalkanes and Haloarenes Question 34 English Option 1

JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Haloalkanes and Haloarenes Question 34 English Option 2

JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Haloalkanes and Haloarenes Question 34 English Option 3

JEE Main 2020 (Online) 7th January Morning Slot Chemistry - Haloalkanes and Haloarenes Question 34 English Option 4

JEE Main 2019 (Online) 12th April Evening Slot

MCQ (Single Correct Answer)

-1

An 'Assertion' and a 'Reason' are given below. Choose the correct answer from the following options :
Assertion (A) : Vinyl halides do not undergo nucleophilic substitution easily.
Reason (R) : Even though the intermediate carbocation is stabilized by loosely held p-electrons, the cleavage is difficult because of strong bonding.

Both (A) and (R) are correct statements but (R) is not the correct explanation of (A)

Both (A) and (R) are correct statements and (R) is the correct explanation of (A)

(A) is correct statement but (R) is a wrong statement

Both (A) and (R) are wrong statements.

JEE Main 2019 (Online) 10th April Evening Slot

MCQ (Single Correct Answer)

-1

The major product 'Y' in the following reactions is :