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Chemistry

Chemistry
The monomer of polythene is

ethyl alcohol
None of these
ethylene
vinyl chloride

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

Ethane
Methane
Carbon monoxide
Carbon di-oxide

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Chemistry
The ionic radii of N3-, O2-, F- and Na+ follows the order

N3- > Na+ > O2- > F-
Na+ > O2- > N3- > F-
N3- > O2- > F- > Na+
O2- > F- > Na+ > N3-

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Chemistry
The source of energy that causes the least global warming is

Coal
Petroleum
Natural Gas
Geothermal energy

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Chemistry
The value of Avogadro Number is

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

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Chemistry
Catalytic converters are generally made from :

Carbon
Transition metals
Alkaline metals
Hydrogen

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MORE MCQ ON Chemistry

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