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Chemistry

Chemistry
Which of the following acts as promoter for iron in Haber's process

Mn
Mo
Mg
W

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Chemistry
The most abundant inert gas in the atmosphere is

Neon
Helium
Krypton
Argon

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Chemistry
Organic compounds are

Covalent compounds
Interstitial compounds
Co-ordination compounds
Ionic compounds

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Chemistry
A fertile soil is likely to have a pH of

9
43989
14
3

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Chemistry
Which of the following metals occurs in free state ?

Zinc
Iron
Lead
Copper

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Chemistry
When ice cubes are made, the entropy of water

Increases
May either increase or decrease depending on the process used
Does not change
Decreases

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