Classification of Elements & Periodicity (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Chemistry): Questions 1 - 5 of 29

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Question number: 1

» Classification of Elements & Periodicity » Isoelectronic Species

Appeared in Year: 2013

MCQ▾

Question

Among the following, the set of isoelectronic ions is:

Choices

Choice (4) Response

a.

Na,Mg2,F,Cl2

b.

Na,Ca2,F,O

c.

Na,Mg2,F,O2

d.

Na,K,S2,Cl

Question number: 2

» Classification of Elements & Periodicity » Ionization Enthalpy

Appeared in Year: 2015

MCQ▾

Question

The electronic configuration of an element with the largest difference between the 1st&2nd ionization energies is-

Choices

Choice (4) Response

a.

1s22s22p6

b.

1s22s22p63s1

c.

1s22s22p63s2

d.

1s22s22p1

Question number: 3

» Classification of Elements & Periodicity » Isoelectronic Species

Appeared in Year: 2015

MCQ▾

Question

O2 is isoelectronic with

Choices

Choice (4) Response

a.

Zn2

b.

Mg2

c.

Ni2

d.

K

Question number: 4

» Classification of Elements & Periodicity » Isoelectronic Species

Appeared in Year: 2012

MCQ▾

Question

The isoelectronic pairs of ions is-

Choices

Choice (4) Response

a.

Mn2andFe3

b.

Sc2andV3

c.

Ni3andFe2

d.

Mn3andFe2

Question number: 5

» Classification of Elements & Periodicity » Ionization Enthalpy

MCQ▾

Question

Choose the correct order of ionization energy order for the given species:

Choices

Choice (4) Response

a.

O>S>S>O

b.

F>F>Cl>Cl

c.

O>O>S>S

d.

F>Cl>Cl>F

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