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Chemistry

Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.4 mole
0.25 mole
0.2 mole
0.5 mole

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Chemistry
The major constituent of air is

carbon dioxide
nitrogen
oxygen
hydrogen

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Chemistry
Interveinal necrotic spots on leaves appear due to

HF injury
O3injury
NO2injury
SO2injury

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Chemistry
A matured mammalian cell without nucleus is

Oocyte
Erythrocyte
Spermatozoan
Lymphocyte

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Chemistry
PH scale ranges from

None
0 – 14
0 – 7
8 – 14

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Chemistry
Sodium is produced by the electrolysis of

Molten sodium carbonate
Its cyanide complex
Molten sodium chloride
Aqueous brine solution

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MORE MCQ ON Chemistry

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