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Chemistry

Chemistry
24 carat of diamond is equal to

200 mg
91% gold
200 g
95% mg

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Chemistry
Interveinal necrotic spots on leaves appear due to

HF injury
NO2injury
O3injury
SO2injury

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Chemistry
The important ore of aluminium is

Bauxite
Haematite
Cryolite
Fluorspar

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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

Smog
Green house effect
None of these
Eutrophication

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Chemistry
A detergent is a

Soap
Cleansing agent
Drug
Catalyst

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Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Higgs-boson
Cations
Isotopes
Anions

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MORE MCQ ON Chemistry

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