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Chemistry

Chemistry
Which of the following is the petroleum wax ?

Jojoba wax
Bees wax
Carnauba wax
Paraffin wax

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Chemistry
Cloud is a colloidal dispersion of

Air in a dispersion medium of water
Mist in a dispersion medium of air
Fog in a dispersion medium of water
Water drops in a dispersion medium of air

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Chemistry
The fundamental particles present in the nucleus of an atom are

Proton, neutron
Neutron, electron
Neutron, positron
Electron, proton

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Chemistry
Ozone layer of atmosphere absorbs:

Infra-red rays
All radiations of Light
Ultraviolet rays
Cosmic rays.

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Chemistry
Bee sting contains

A corrosive liquid
An alkaline liquid
An acidic liquid
A salt solution

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Chemistry
Cement is formed by strongly heating a mixture of

Limestone and graphite
Limestone and clay
Chalk and graphite
Clay and graphite

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MORE MCQ ON Chemistry

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