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Chemistry

Chemistry
The hottest part of the gas flame is known as

dark zone
blue zone
non-luminous zone
luminous zone

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Chemistry
Which one of the following has a maximum tendency to form M3 ion ?

Bi
N
P
As

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Chemistry
Heavy metals got their name because compared to other atoms they have

Higher atomic masses
Higher atomic radii
Higher densities
Higher atomic numbers

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Chemistry
Citric acid is present in free form in

Lemon
Tamarind
Apple
Milk

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Chemistry
Which among the following is a carbohydrate ?

Turpentine
Nylon
Cane-sugar
Hydrogen peroxide

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Chemistry
Synthetic detergents are prepared from

Sodium salts of higher fattyacids
Glycerides
Hydrocarbons of petroleum
Potassium salts of higher fatty-acids

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