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Earn 100

The conversion of atomic hydrogen into ordinary hydrogen is
(a)an exothermic change.
(b)an endothermic change.
(c)used in oxyhydrogen torch.
(d)Both () and ().

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Important Questions on Hydrogen
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Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75kg person would gain if all atoms are replaced by atoms is:

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Out of the oxides given below which of them cannot be reduced by ?

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Which of the following statements about hydrogen is incorrect?

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1) It exists as a diatomic molecule.
2) It has one electron in the outermost shell.
3) It can lose an electron to form a cation which can freely exist.
4) It cannot form ionic compounds.

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The equation that represents the water-gas shift reaction is :

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In water-gas shift reaction, hydrogen gas is produced from the reaction of steam with.

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