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Chemistry

Chemistry
Identify the metal which is non toxic in nature.

Chromium
Cadmium
Cobalt
Gold

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Chemistry
Iron filings can be separated from a heterogenous mixture using the technique of :

Sedimentation
Magnetization
Evaporation
Sublimation

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Chemistry
Iron rusts quickly in

River water
Distilled water
Rain water
Sea water

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Chemistry
The chemical name of quartz is

Calcium phosphate
Sodium phosphate
Calcium oxide
Sodium silicate

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Chemistry
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

1/8
1/3
1/4
1/6

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Chemistry
How many electrons in a Hydrogen atom

Three
Four
One
Two

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MORE MCQ ON Chemistry

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