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Chemistry

Chemistry
The mass of one Avogadro number of helium atom is

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

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

86
89
96
92

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Chemistry
Rectified spirit is :

100% ethyl alcohol
Methylated spirit
Tincture iodine
95% ethyl alcohol

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Chemistry
The components of water can be separated by

They can not be separated
Physical methods
Chemical methods
Both A and B

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Chemistry
'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of –

Uncertainty Principle of Hiesenberg
Hund's rule of maximum multiplicity
Avogadro's Law
Exclusion Principle of Pauli

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Chemistry
The working of a dry cell is based on

Spontaneous oxidation-reduction reaction
Electrolysis
Combination reaction
Decomposition reaction

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MORE MCQ ON Chemistry

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