OTS Chemistry Mcqs Online Test 2

Asghar Niazi

OTS Chemistry Mcqs Online Test 2 Prepare Question Answers Start Below

Plasma is used in?

. Fluorescent bulb
Neon signs
Lasers .
All of these

Correct!

Wrong!

When fast neutron strike the nucleus of nitrogen the particles ejected are?

? - particles
? - particles
? - rays
X - rays

Correct!

Wrong!

Quantum number values for 3p orbitals are?

n=3 l=2 .
n=3 l=0
n=3 l=1
n=3 l=3

Correct!

Wrong!

Bohrs model is contradicted by?

Plancks theory .
Dual nature of matter .
Heisenbergs uncertainty principle
All of these

Correct!

Wrong!

Only London dispersion forces are present among the?

Molecules of water in liquid state .
Atoms of helium in gaseous state at high temperature
Molecules of hydrogen chloride gas
Molecules of solid iodine

Correct!

Wrong!

The molecules of CO2 in dry ice form?

Ionic crystal
Covalent crystal
Molecular crystal
Any type of crystal

Correct!

Wrong!

A real gas obeying vander waals equation will resemble the ideal gas if?

Both a and b are small
Both a and b are large
a is small and b is large
a is large and b is small

Correct!

Wrong!

A method of separation of components from its solution using Distribution law is?

Sublimation
. Crystallisation .
Solvent extraction
Distillation

Correct!

Wrong!

Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is?

one / seventeen
sixteen / seventeen
one / three
two / three

Correct!

Wrong!

Which of the following is pseudo solid?

CaF2 .
NaCl
Glass
Diamond

Correct!

Wrong!

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