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JEE Main 20209 JanuaryMorning Shift
Exam
JEE Main
Year
2020
Date
9 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2020 · 9 January · Morning Shift · Chemistry · Aldehydes and Ketones

Identify (A) in the following reaction sequence:

Identify (A)\left(A\right) in the following reaction sequence:
Identify (A) in the following reaction sequence:

Options

  1. AAssertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.
  2. BAssertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.
  3. CAssertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.
  4. DAssertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.

Correct answer

B. Assertion : O_2 has higher bond length than O_3 . Reason: O_3 is paramagnetic.

Step-by-step solution

Identify (A) in the following reaction sequence:

Ozonolysis with O3{O}_{3} converts alkenes into carbonyl compounds.

Alcohol upon reaction with protic acids tends to lose a molecule of water to form alkenes. These reactions are known as dehydrogenation or dehydration of alcohols. It is an example of an elimination reaction.The order of the ease of dehydration of alcohols is: tertiary > secondary > primary.

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