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Chemistry

Chemistry
Number of hydrogen atoms in a Glucose molecule

6
14
12
8

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Chemistry
Oxygen has (+) oxidation number only in

C12O
N2O
OF2
H2O (2)

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Chemistry
Laughing gas is

Nitrous oxide
Nitrogen pentoxide
Nitrogen trioxide
Nitric oxide

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Chemistry
The metal present in vitamin B12 is

Mg
Fe
Co
Mo

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Chemistry
Which of the following fibres catches fire least ?

Nylon
Terricot
Rayon
Cotton

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Chemistry
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

s-electrons in Mg(Z = 12)
d-electrons in Fe(Z = 26)
p-electrons in CI(Z = 17)
p-electrons in Ne(Z = 10)

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