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Chemistry

Chemistry
When Hydrogen starts burning in air, it produces ?

Water
Methane
Ammonia
Carbonic Acid

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Chemistry
What is the covalency of nitrogen in ammonia molecule

2
5
4
3

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Chemistry
Stains of rust on clothes can be removed by :

Alcohol
Petrol
Oxalic acid
H2O2

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Chemistry
Which of the following processes is used for the production of Biodiesel ?

Transamination
Translation
Transesterification
Transcription

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Chemistry
An alloy used in making heating elements for electric heating device is

Solder
Nichrome
Alloy Steel
German Silver

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Chemistry
What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ?

There is no reaction.
There is a violent explosion.
The paper ignites
There is a crackling sound

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