KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Chemistry: Questions 80 - 85 of 133

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Question number: 80

» Equilibrium » Ionic Equilibrium » pH Scale

Appeared in Year: 2014

MCQ▾

Question

The pH of 0.1 M aqueous solutions of will follow the order

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 81

» Atomic Structure » Electronic Configuration of Elements

Appeared in Year: 2015

MCQ▾

Question

The element, which readily forms an ionic bond, has the electronic configuration

Choices

Choice (4) Response

a.

122

b.

122

c.

122

d.

122 3

Question number: 82

» Day to Day Chemistry » Medicines » Analgesics

Appeared in Year: 2012

MCQ▾

Question

Acetylsalicylic acid is a painkiller and is commonly known as:

Choices

Choice (4) Response

a.

aspirin

b.

ibuprofen

c.

Paracetamol

d.

penicillin

Question number: 83

» Redox Reactions & Electrochemistry » Electronic Concepts of Oxidation and Reduction

Appeared in Year: 2009

MCQ▾

Question

In the reaction 222, the substance that is oxidized is-

Choices

Choice (4) Response

a.

S

b.

2

c.

2

d.

2

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.

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 (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

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