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Chemistry

Chemistry
The gas that is used in the manufacture of vanaspati ghee is :

Nitrogen
Hydrogen
Carbon dioxide
Oxygen

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Chemistry
When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called

Green house effect
Smog
None of these
Eutrophication

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Chemistry
Highest percentage of carbon is found in which form of coal?

Lignite
Anthracite
Peat
Bituminous

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Chemistry
Stainless steel is usually made by alloying the steel with

Copper and chromium
Chromium and nickel
Copper and nickel
Manganese and copper

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Chemistry
The pH of human blood is between :

7.5-8
4.5-5
6.5-7
44052

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Chemistry
Which of the following is not a nitrogenous fetiliser?

Ammonium nitrate
Superphosphate
Ammonium sulphate
Urea

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