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Chemistry

Chemistry
What is the mass percentage of carbon in carbon dioxide (CO2)

0.158
0.201
0.273
0.323

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Chemistry
Which of the following will replace hydrogen from acids to form salts ?

S
Na
P
Ag

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Chemistry
Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives

Copper at cathode and anodes dissolve to give copper
Copper at anode and oxygen at cathode.
Copper at cathode and oxygen at anode
Hydrogen at cathode and oxygen at anode

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Chemistry
Among the following, carbonate ore of Zinc is

Zincite
Zincblende
Calamine
Sphalerite

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

0.12 gms
12 gms
120 gms
1.2 gms

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Chemistry
Which of the following processes is used for the production of Biodiesel ?

Translation
Transcription
Transesterification
Transamination

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MORE MCQ ON Chemistry

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