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Chemistry

Chemistry
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

2
4
zero
5

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Chemistry
Major portion of the earth’s crust is mainly constituted by

Silicon and Aluminium
Silicon and Iron
Oxygen and Silicon
Oxygen and Iron

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Chemistry
Wood spirit is

Methyl alcohol
Ethyl alcohol
Butyl alcohol
Propyl alcohol

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Chemistry
Smoke is formed due to

Gas dispresed in solid
Solid dispresed in liquid
Solid dispersed in gas
Gas dispersed in gas

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Chemistry
The pH of human blood is between :

6.5-7
7.5-8
44052
4.5-5

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Chemistry
The most abundant element in the human body is

Iron
Oxygen
Nitrogen
Carbon

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MORE MCQ ON Chemistry

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