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Chemistry

Chemistry
What is the atomic number of mercury

80
63
32
41

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Chemistry
Which one of the following elements exhibits the greatest tendency to lose electrons ?

Oxygen
Fluorine
Lithium
Zinc

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Helium
Nitrogen
Oxygen
Hydrogen

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

n-2
n
n2
n3

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Chemistry
A detergent is a

Cleansing agent
Catalyst
Soap
Drug

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Chemistry
Normal rainwater is slightly acidic due to the presence of

None of these
Sulphur dioxide
Carbon dioxide
Methane

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