Atomic Structure (KVPY Stream-SA (Class 11) Chemistry): Questions 1 - 6 of 30

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Question number: 1

» Atomic Structure » Electronic Configuration of Elements

Appeared in Year: 2013

MCQ▾

Question

The number of valence electrons in an atom with electronic configuration 1s2 2s2 2p6 3s2 3p3 is

Choices

Choice (4) Response

a.

5

b.

3

c.

2

d.

11

Question number: 2

» Atomic Structure » Electronic Configuration of Elements

Appeared in Year: 2014

MCQ▾

Question

The number of valence electrons in an atom with electronic configuration 1s2 2s2 2p6 3s2 3p6 is

Choices

Choice (4) Response

a.

9

b.

5

c.

2

d.

8

Question number: 3

» Atomic Structure » Rules for Filling Electrons in Orbitals

Appeared in Year: 2015

MCQ▾

Question

The number of electrons required to reduce chromium completely in Cr2O72 − to Cr3+ in acidic medium is

Choices

Choice (4) Response

a.

2

b.

3

c.

5

d.

6

Question number: 4

» Atomic Structure » Electronic Configuration of Elements

MCQ▾

Question

Find out the ground-state electronic configuration of Cl+,ClandCl.

Choices

Choice (4) Response

a.

3s23p2,,3s23p53s23p6

b.

3s23p6,3s23p4,3s23p5,

c.

3s23p53s23p4,,3s23p6

d.

3s23p4,3s23p5,3s23p6

Question number: 5

» Atomic Structure » Rules for Filling Electrons in Orbitals

Appeared in Year: 2010

MCQ▾

Question

Among NH 3, BCl 3, Cl 2 and N 2 t he compound that does not satisfy the octet rule is –

Choices

Choice (4) Response

a.

BCl 3

b.

Cl 2

c.

N 2

d.

NH 3

Question number: 6

» Atomic Structure » Quantum Mechanical Model of Atom

Appeared in Year: 2011

MCQ▾

Question

The set of principal (n), azimuthal (l) and magnetic (ml) quantum numbers that is not allowed for the electron in H-atom is

Choices

Choice (4) Response

a.

n = 3, l = 1, ml = –1

b.

n = 2, l = 1, ml = 0

c.

n = 3, l = 0, ml = 0

d.

n = 2, l = 2, ml = –1

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