KVPY Stream-SA (Class 11) Chemistry: Questions 84 - 86 of 133

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Question number: 84

» Atomic Structure » Bohr Model of Hydrogen Atom

MCQ▾

Question

Find out the number of waves made by a Bohr electron in one complete revolution in its third orbit.

Choices

Choice (4) Response

a.

λ

b.

2 λ

c.

12 λ

d.

3 λ

Question number: 85

» Purification & Characteristics of Organic Compounds » Purification » Chromatography

Appeared in Year: 2014

MCQ▾

Question

The species that exhibits the highest Rf (retention factor) value in a thin layer chromatogram using a nonpolar solvent on a silica gel plate is

Choices

Choice (4) Response

a.

The species that exhibits the highest Rf value: Choice A

The Species That Exhibits the Highest Rf Value: Choice A

Find the species that exhibits the highest Rf (retention factor) value in a thin layer chromatogram

b.

The species that exhibits the highest Rf value: Choice B

The Species That Exhibits the Highest Rf Value: Choice B

Find the species that exhibits the highest Rf (retention factor) value in a thin layer chromatogram

c.

The species that exhibits the highest Rf value: Choice C

The Species That Exhibits the Highest Rf Value: Choice C

Find the species that exhibits the highest Rf (retention factor) value in a thin layer chromatogram

d.

The species that exhibits the highest Rf value: Choice D

The Species That Exhibits the Highest Rf Value: Choice D

Find the species that exhibits the highest Rf (retention factor) value in a thin layer chromatogram

Question number: 86

» Organic Compounds With Halogens » Preparation, Properties and Reactions

Appeared in Year: 2012

MCQ▾

Question

The major product in the following reaction is

The reaction of C3H4 (Propyne) + HBr

The Reaction of C3H4 (Propyne) + HBr

Find the product in the reaction of C3H4 (Propyne) + HBr

Choices

Choice (4) Response

a.

Image indicates product of a reaction: Choice A

Image Indicates Product of a Reaction: Choice A

Image shows major product by the reaction of given question

b.

Image indicates product of a reaction: Choice B

Image Indicates Product of a Reaction: Choice B

Image shows major product by the reaction of given question

c.

Image indicates product of a reaction: Choice C

Image Indicates Product of a Reaction: Choice C

Image shows major product by the reaction of given question

d.

Image indicates product of a reaction: Choice D

Image Indicates Product of a Reaction: Choice D

Image shows major product by the reaction of given question

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