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Earn 100

A hybrid rocket propellant uses
(a)A liquid oxidizer and a solid fuel
(b)A composite solid propellant
(c)A biliquid propellant
(d)A solid, liquid and gas as a propellant

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Important Questions on Hydrogen and its Compounds
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The equation that represents the water-gas shift reaction is :

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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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Which of the following statements about hydrogen is incorrect?

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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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MEDIUM

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

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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Hydrogen is the most abundant element in the Universe, but it is not the most abundant gas in the troposphere.
Reason R: Hydrogen is the lightest element.
In the light of the above statements, choose the correct answer from the options given below:

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