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Chemistry

Chemistry
The antiparticle of an electron is

Positron
Proton
Alpha particles
Beta particles

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Chemistry
The value of Avogadro Number is

6.023 × 1025
6.023 × 1024
6.023 × 1022
6.023 × 1023

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Chemistry
Gobar gas contains mainly :

Ethylene
Propylene
Acetylene
Methane

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Chemistry
________ gives hardness to stainless steel.

Carbon
Zinc
Lead
Tin

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Chemistry
Which of the following could be used as fuel in propellant or rockets ?

Liquid Oxygen + Liquid Argon
Liquid Hydrogen + Liquid Oxygen
Liquid Hydrogen + Liquid Nitrogen
Liquid Nitrogen + Liquid Oxygen

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Chemistry
Aspirin is

Phenyl Salicilate
Methoxy benzoic acid
Methyl Salicilate
Acetyl Salicilic acid

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MORE MCQ ON Chemistry

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