Class 9 Chemistry MCQ Chapter 5

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Class 9 Chemistry MCQ


P1V1 = P2V2 is mathematical form of ____________ law.

(‘radio-button-click-target’, “Bohr’s”)

Charles

(‘radio-button-click-target–correctquestions’, “Boyle’s”)

Nil

Bucky Balls are used as ________________
Cutting
Grafting
Lubricants
Nil

The escape of gaseous molecules one by one is called ____________.
Diffusion
Effusion
A & b
Nil

One atmospheric pressure is equal to how many pascals?
101325
10325
106075
10523

Mobility is property of ____________
Liquid
Gases
A & b
Nil

Atoms are arranged in ________________ structure in Bucky balls.
Hollow
Cage
A & B
Nil

The simplest of these has formula:
C60
C10
V20
C30

Gases are the lightest form of mater and their densities are expressed in terms of:
mg cm-3
g cm-3
g dm-3
kg dm-3

Es is symbol of :
Erbium
Einsteinium
Europium
Fremium

Which gas will diffuse faster than others?
Hydrogen
Oxygen
Chlorine
Nitrogen

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