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Chemistry

Chemistry
The formula C6H5-CO-CH3 represents

Phenyl acetate
Acetic acid
Acetone
Acetophenone

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Chemistry
Basicity of boric acid, H3BO3 is

3
4
2
5

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Chemistry
If we burn graphite,

It will change into diamond
Residue will be left
It will not burn
No residue will be left

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Chemistry
Which one is the naturally occuring heaviest element

Uranium
Thorium
Protactinium
Mercury

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Chemistry
________ gives hardness to stainless steel.

Carbon
Lead
Tin
Zinc

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Chemistry
Ruby and sapphire are oxides of

Aluminium
Iron
Tin
Copper

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