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Chemistry

Chemistry
Which of the following is not present in RNA

Thymine
Ribose
Phosphate
Uracil

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Chemistry
Commercial Vaseline is derived from

Petroleum
Wool wax
Plant gums
Coal tar

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Chemistry
The most abundant element by number in the living system is :

Hydrogen
Oxygen
Nitrogen
Carbon

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Chemistry
When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called

None of these
Eutrophication
Green house effect
Smog

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Chemistry
The chemical name of rat poison is

Potassium cyanide
Zinc oxide
Zinc phosphide
Lead nitrate

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Chemistry
The luster of a metal is due to

presence of free electrons
its high polishing
its chemical inertness
its high density

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MORE MCQ ON Chemistry

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