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Chemistry

Chemistry
Electric bulbs are filled with :

Oxygen
Carbon dioxide
Nitrogen
Argon

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Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Methane
Carbon monoxide
Ethane
Carbon di-oxide

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Chemistry
The first organic compound synthesised in the laboratory was

Lactic acid
Urea
Uric acid
Glucose

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Chemistry
Which one is the lightest element in the periodic table

Helium
Oxygen
Hydrogen
Carbon

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Chemistry
Which of the following has the highest lattice energy

KF
NaF
RbF
CsF

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Chemistry
Threshold limit value of copper in the atmospheric air is

1.0 mg/m3
5.0 mg/m3
0.01 mg/m3
0.001 mg/m3

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MORE MCQ ON Chemistry

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