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Chemistry

Chemistry
Piped Natural Gas (PNG) is used for

Cooking
Welding
Mining
Anaesthesia

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Chemistry
The liquid waste from kitchens and baths, of residences is known as :

Sullage
Storm water
Domestic sewage
Refuse

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Chemistry
The strongest acid of the following is

P-chlorophenol
O-nitrophenol
M-nitrophenol
P-nitrophenol

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Chemistry
Ozone layer of atmosphere absorbs:

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

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Chemistry
Two electrons in an orbital are differentiated by which of the following ?

Azimuthal quantum number
Principal quantum number
Spin quantum number
Magnetic quantum number

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Chemistry
Gelatin is mostly used in making ice–creams in order to

Stabilise mixture
Enrich the aroma
Stabilise the colloid and prevent crystallisation
Prevent making a colloid

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