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Chemistry

Chemistry
Which of the following is used to denature ethanol ?

Phenol
Propyl alcohol
Methane
Methyl alcohol

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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 cathode and oxygen at anode
Hydrogen at cathode and oxygen at anode
Copper at anode and oxygen at cathode.

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Chemistry
The number of waves in n x 10th Bohr's orbit are

n
n3
n-2
n2

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Chemistry
The nucleus of a hydrogen atom consists of

1 electron only
1 proton + 2 neutron
1 neutron only
1 proton only

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Chemistry
What is the principal ore of aluminium ?

Bauxite
Lignite
Copper
Dolomite

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Chemistry
Sea weeds are important source of

Bromine
Chlorine
Iron
Iodine

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MORE MCQ ON Chemistry

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