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Chemistry

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

Mo
W
Mn
Mg

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Chemistry
Molality of pure water is

5.55
55.5
1.8
18

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Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

2
8
32
18

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Chemistry
Glycol is added to aviation gasoline because it

Increases efficiency of petrol
Prevents freezing of petrol
Reduces evaporation of petrol
Reduces consumption of petrol

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Chemistry
The pH of human blood is between :

7.5-8
6.5-7
44052
4.5-5

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Chemistry
Fertiliser having high nitrogen content is :

Urea
Ammonium sulphate
Ammonium nitrate
Calcium citrate

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