Free Printable Jee Chemistry Mock Test

1.

The adding of electrons one by one to the various orbitals in order of their increasing energy level , starting with orbital of lowest energy .

Is stated by ________________

a)

Aufbau

b)

Pauli

c)

Bohr

d)

Hund

2.

_____________ is the shortest period .

a)

$Ist\ period$

b)

$IInd\ period$

c)

$IIIrd\ period$

d)

$\vee IIth\ period$

3.

The element in which the last electron enters the d-subshell of the penultimate energy level are called ______________ .

a)

s -block

b)

d -block

c)

p -block

d)

f -block

4.

Characteristics of s - block elements are :-

_{(Multi correct )}

a)

Soft metals

b)

Highly electro positive

c)

Conducter of Heat

d)

Highly Reactive

5.

The types of atomic radius are :-

_{(Multi correct )}

a)

Van der waal's Radius

b)

Covalent Radius

c)

Cyristal Radius

d)

Ionic Radius

6.

The ions having ____________ are called isoelectronic species .

a)

Same number of neutrons .

b)

Same number of protons

c)

Different number of electrons

d)

Same number of electrons

7.

In atomic radius in period , alkali metals is the _____ & halogens are _____ in size .

_{(The answers are respective to the blanks )}

a)

largest , smallest

b)

smallest , largest

c)

equal , neutral

8.

The $\ d_{z^2\ \ }$ orbital can give room only to ________ electrons .

a)

9

b)

4

c)

7

d)

2

9.

Orbitals possessing same energy are called ______ .

a)

Generate orbitals

b)

Degenerate Orbitals

c)

Hybrid orbitals

10.

Nitrogen atom has 3 unpaired electrons because of

a)

Aufbau's principle

b)

Hund's rule

c)

Pauli's rule

d)

n+l rule

11.

$\vee II\$ group is known as ________ .

a)

Chalcogens

b)

Halogens

c)

Carbon Family

d)

Noble Gases

12.

$II\ A\ \$ group elements are called________ .

a)

Alkali metals

b)

Alkaline Earth Metals

c)

Transition Elements

d)

Inert Gases

13.

$ns^{1-2}$ is electronic configuration of _________________ .

a)

s - block elements

b)

f- block elements

c)

p - block elements

d)

d - block elements

14.

Longest period is

a)

IV

b)

VII

c)

I

d)

VI

15.

Th distance between the centre of nucleus & the electron cloud of the outer most energy level is called

a)

Electron Radius

b)

Atomic Radius

c)

Nucleus Radius

d)

Covalent Radius

Jee Chemistry Mock Test

Total questions: 15

Worksheet time: 11mins

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