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Chemistry

Chemistry
Of the following compounds of calcium, the one having highest covalent character is

CaF2
Cal2
CaBr2
Cacl2

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Chemistry
What is the element that is in the highest percentage in the composition of the earth ?

Magnesium
Oxygen
Iron
Silicon

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Chemistry
The anode of a dry cell is made up of

Lead
Cadmium
Iron
Zinc

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Chemistry
Which is the purest form of iron?

Cast iron
Wrought iron
Steel
Pig iron

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Chemistry
Diamond is harder than graphite because of :

Difference in layers of atoms
Tetrahedral structure of diamond
None of these
Difference of crystalline structures

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Chemistry
The most volatile of the given liquids is

Liquid NH3
Ether
Liquid He
Liquid

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MORE MCQ ON Chemistry

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