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Chemistry

Chemistry
The octane number of zero is assigned to

3-methyl octane
n-heptane
2-methyl octane
iso-octane

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Chemistry
How many electrons can be accommodated in d-orbital

10
8
3
6

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

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

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Chemistry
The name of unreactive gas is

Nitrogen
Hydrogen
Oxygen
Carbon dioxide

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Chemistry
The value of Avogadro Number is

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

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Chemistry
The chemical formula of the laughing gas is

NO
N2O
N2O3
NO2

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MORE MCQ ON Chemistry

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