Hydrocarbons-Preparation, Properties and Reactions [BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry]: Questions 6 - 10 of 26

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Question 6

Question MCQ▾

Name the Above Reaction Which is Given

Above reaction is known as –

Choices

Choice (4)Response

a.

Carboxylation

b.

Oxo reaction

c.

Both a. and b. are correct

d.

None of the above

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Question 7

Question MCQ▾

Which is the Most Probable Mechanism for this Reaction

Most probable mechanism for this reaction is -

Choices

Choice (4)Response

a.

El

b.

E1CB

c.

E2

d.

α – elimination

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Question 8

Question Assertion-Reason▾

Assertion(Ꭺ)

Addition of bromine to trans-2-butene yields meso-2,3-dibromobutane.

Reason(Ꭱ)

Bromine addition to an alkene is electrophilic addition.

Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

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Question 9

Question MCQ▾

The compound which reacts with HBr obeying Markownikov՚s rule is?

Choices

Choice (4)Response

a.

CH2 = CH2

b.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice B

c.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice C

d.

Which Reacts with HBr Obeying Markownikov՚s Rule: Choice D

Edit

Passage

Markownikoff s rule states, “the negative part of addendum is added on the carbon atom carrying lesser number of hydrogen atoms” .

Formation of Alkyl Halide

However, addition, of HBr on propylene in the presence of sunlight, air or an organic peroxide produces mainly n-propyl bromide instead of isopropyl bromide. In the presence of organic peroxides, addition of HBr takes place by a free radical mechanism as follows.

Formation of Phenyl Free Radical

Question 10 (1 of 3 Based on Passage)

Question MCQ▾

Addition of HCl on

What Will be the Major Product Formed by this Reaction

Forms the following major product:

Choices

Choice (4)Response

a.

Major Product Formed Will be: Choice A

b.

Major Product Formed Will be: Choice B

c.

Major Product Formed Will be: Choice C

d.

Major Product Formed Will be: Choice D

Edit