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Chemistry

Chemistry
How many electrons can be accommodated in d-orbital

8
10
3
6

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Chemistry
Which one is the purest form of carbon

Graphite
Diamond
Iron
Coal

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Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

formality
molality
molarity
normality

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Chemistry
The gas used in the artificial ripening of fruits is

Methane
Acetylene
Ethane
Butane

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

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

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Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Nitrozen
Hydrogen
Carbon
Oxyzen

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