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Chemistry

Chemistry
Milk is

Gel
Suspension
Foam
Emulsion

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Chemistry
Saccharin is made up of

Phenol
Toluene
Butane
Propane

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Chemistry
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :

Generator
Uninterrupted power supply (UPS)
Battery
Power transmittor

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Chemistry
The chemical formula of the laughing gas is

N2O3
NO
NO2
N2O

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Chemistry
The presence of ozone in the stratosphere is responsible for

Higher rate of photosynthesis
Supplying oxygen for people travelling in jets
Checking the penetration of ultra-violet rays to the earth
Increasing the average global temperature in recent years

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Chemistry
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

2 : 16 : 1
1 : 1 : 1
2 : 16 : 2
1 : 16 : 2

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