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The addition of HBr to 1-butene gives a mixture of products A, B and C (A) (B) (C) CH3 – CH2 – CH2 – CH2 – Br The mixture consists of: - Chemistry

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प्रश्न

The addition of HBr to 1-butene gives a mixture of products A, B and C

(A)
(B)
(C) CH3 – CH2 – CH2 – CH2 – Br

The mixture consists of:

पर्याय

  • A and B as major and C as minor products

  • B as major, A and C as minor products

  • B as minor, A and C as major products

  • A and B as minor and C as major products

MCQ
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उत्तर

A and B as major and C as minor products

Explanation:

The reaction follows Markovnikov’s rule leading to giving 2° carbocation as an intermediate.

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पाठ 13: Hydrocarbons - Multiple Choice Questions (Type - I) [पृष्ठ १६२]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 13 Hydrocarbons
Multiple Choice Questions (Type - I) | Q 5 | पृष्ठ १६२

संबंधित प्रश्‍न

Write IUPAC name of the product obtained by the ozonolysis of the following compound.

Pent-2-ene


An alkene ‘A’ on ozonolysis gives a mixture of ethanal and pentan-3-one. Write structure and IUPAC name of ‘A’.


An alkene ‘A’ contains three C – C, eight C – H σ bonds and one C – C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of ‘A’.


Propanal and pentan-3-one are the ozonolysis products of an alkene? What is the structural formula of the alkene?


Write a chemical equation for combustion reaction of the following hydrocarbon:

Butane


Write a chemical equation for combustion reaction of the following hydrocarbon:

Toluene


Arrange the halogens F2, Cl2, Br2, I2, in order of their increasing reactivity with alkanes.


Arrange the following hydrogen halides in order of their decreasing reactivity with propene.


Which of the following alkenes on ozonolysis give a mixture of ketones only?

(i) CH3 – CH = CH – CH3
(ii) \[\begin{array}{cc}
\ce{CH3 - C - CH = CH2}\\
|\phantom{.......}\\
\ce{CH3}\phantom{....}
\end{array}\]
(iii)
(iv) \[\begin{array}{cc}
\phantom{...................}\ce{CH3}\\
\phantom{..............}/\\
\ce{(CH3)2 C = C}\\
\phantom{..............}\backslash\\
\phantom{...................}\ce{CH3}
\end{array}\]

In the presence of peroxide addition of HBr to propene takes place according to anti Markovnikov’s rule but peroxide effect is not seen in the case of HCl and HI. Explain.


An alkene 'X' on ozonolysis produces two moles of isovaleraldehyde. Predict the IUPAC name of the alkene. 


Which of the following reagent is used for the following reaction?

\[\ce{CH3CH2CH3 ->[?] CH3CH2CHO}\]


The major product formed in the following reactions is:


What would be the main product when propene reacts with HBr?


Propene, \[\ce{CH3 - CH = CH2}\] can be converted to 1-propanol by oxidation. Which set of reagents among the following is ideal to effect the conversion ______.


3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is ______.


In the presence of peroxide, HCl and HI do not give anti-Markovnikov's addition of alkenes because ______.


An alkene ‘A’ contains three C – C, eight C – H σ bonds and one C – C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write the IUPAC name of ‘A’.


Identify the correct reagents that would bring about the following transformation.


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