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Chemistry

Chemistry
Which amidst the following is not a gem stone ?

Opal
Cat's-eye
Pearl
Topaz

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Chemistry
Molasses a by-product in the manufacture of sugar, is converted into

Pulp
Paper
Fuel
Alcohol

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Chemistry
Ruby and sapphire are oxides of

Iron
Copper
Tin
Aluminium

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Chemistry
The value of Avogadro Number is

6.023 × 1025
6.023 × 1024
6.023 × 1022
6.023 × 1023

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Chemistry
Percentage of lead in lead pencils is

40
80
31-66

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Chemistry
Which one element from below list is liquid at room temperature

Bromine
Zinc
Argon
Lead

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MORE MCQ ON Chemistry

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