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Chemistry

Chemistry
DDT and BHC may act as

Asthematic agents
Allergens
None of these
Carcinogens

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

86
89
96
92

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Chemistry
The chemical name of quartz is

Sodium silicate
Sodium phosphate
Calcium phosphate
Calcium oxide

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Chemistry
Chemical name of vinegar is

Acetic acid
Acetone
Ethanol
Formaldehyde

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Chemistry
The elements with atomic numbers 9, 17, 35, 53, 85 are all

Light metals
Heavy metals
Halogens
Noble gases

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Chemistry
In an oxygen molecule, two atoms are united by

Three bonds
Four bonds
One bond
Two bonds

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MORE MCQ ON Chemistry

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