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Chemistry

Chemistry
The pH of human blood is between :

6.5-7
7.5-8
44052
4.5-5

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Chemistry
In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?

Aluminium
Titanium
Iron
Copper

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Chemistry
The chemical bahaviour of an atom depends upon

The number of neutrons in the nucleus
The number of protons in its nucleus
The number of electrons orbiting around the nucleus
The number of nucleons in the nucleus

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Chemistry
The molecular mass of a gas is

Equal to its vapour pressure
Half its vapour pressure
Twice its vapour pressure
Not related to its vapour pressure

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Chemistry
The material known in commerce as Terylene is a

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

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Chemistry
Which of the following is not a nucleon?

Neutron
Electron
Proton
Positron

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MORE MCQ ON Chemistry

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