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Chemistry

Chemistry
Which of the following gases will effuse out of football bladder most quickly ?

H2
N 2
O2
He

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Chemistry
Which of the following elements is non-radioactive ?

Thorium
Uranium
Plutonium
Zirconium

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Chemistry
Which acid is used in Lead storage battery?

Sulphuric acid
Nitric acid
Hydrochloric acid
Acetic acid

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Chemistry
Which one is a soluble salt in H2O

Zn(OH)2
PbCl2
CaCl2
CuS

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Chemistry
Trinitrotoluene is

Used to fuse two metals
Used as an explosive
Used as an abrasive
Used to melt metals

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Chemistry
Which one of the following is also known as solution ?

A suspension
A compound
A homogeneous mixture
A heterogeneous mixture

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