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Chemistry

Chemistry
The most suitable unit for expressing nuclear radius is :

Fermi
Micron
Angstrom
Nanometre

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Chemistry
By-product obtained by soap industry is

Naphthalene
Caustic potash
Caustic soda
Glycerol

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Chemistry
The mass of one Avogadro number of helium atom is

4 x 6.02 x 1023 gram
8.00 gram
4.00 gram
1.00 gram

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Chemistry
The pair of compounds used as anaesthetic in medicines :

Ether, Ammonia
Nitrous oxide, Chloroform
Chloroform, Nitrogen dioxide
Nitrogen dioxide, ether

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

3.05 gram
5.05 gram
4.05 gram
2.05 gram

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

n3
n
n2
n-2

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MORE MCQ ON Chemistry

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