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Chemistry

Chemistry
Citric acid is present in free form in

Tamarind
Milk
Apple
Lemon

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Chemistry
Non-stick kitchenwares are coated with

Graphite
Teflon
Silicon
PVC

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Chemistry
The chemical name of 'laughing gas' is

Nitric oxide
Nitrogen dioxide
Nitrous oxide
Nitrogen pentoxide

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Chemistry
When Hydrogen starts burning in air, it produces ?

Ammonia
Carbonic Acid
Methane
Water

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Chemistry
Air is said to be saturated when :

It blows over the barren land
It contains maximum content of water vapour
Its thickness is maximum
Its pressure is minimum

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Chemistry
The metal compound commonly found in Sindhoor or Kumkum is based on

Zinc
Copper
Lead
Tin

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MORE MCQ ON Chemistry

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