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Chemistry

Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.4 mole
0.2 mole
0.5 mole
0.25 mole

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Chemistry
Acid rain is caused by

SO2 and NO2
CO2and CFCs
SO2 and particulates
NO2and particulates

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Chemistry
Bee sting contains

A salt solution
An alkaline liquid
An acidic liquid
A corrosive liquid

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Chemistry
Phosphorus is kept in water because

Its ignition temperature is very low
Its ignition temperature is very high
Its critical temperature is high
Its critical temperature is low

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Chemistry
'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of –

Uncertainty Principle of Hiesenberg
Exclusion Principle of Pauli
Avogadro's Law
Hund's rule of maximum multiplicity

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Chemistry
The material known in commerce as Terylene is a

Blend of cotton and silk
Synthetic fibre
Modified natural fibre
Natural fibre

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MORE MCQ ON Chemistry

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