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Chemistry

Chemistry
The gas used for artificial fruit ripening of green fruit is

Ethylene
Ethane
Acetylene
Methane

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Chemistry
Which of the following acids serves as an electrolyte in a lead storage battery?

Sulphuric acid
Lactic acid
Hydrochloric acid
Nitric acid

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Chemistry
Citric acid is present in free form in

Milk
Tamarind
Lemon
Apple

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Chemistry
The polymer obtained by the condensation of hexamethylene diamine and adipic acid is :

Bakelite
Terylene
Tollen's
Nylon 66

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Chemistry
Which type of fire extinguisher is used for petroleum fire ?

Powder type
Soda acid type
None of these
Foam type

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Chemistry
Nucleus of an atom consists of.

Neutron
Proton
Electron, Proton and Neutron
Proton and Neutron

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