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Chemistry

Chemistry
Which of the following gases is most toxic ?

Carbon dioxide
Carbon monoxide
Chlorine
Sulphur dioxide

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Chemistry
One property of ammonia is

It is a yellowish gas
It is a odourless gas
Its aqueous solution turns red litmus blue
It is insoluble in water

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Chemistry
Which is the purest form of iron?

Cast iron
Wrought iron
Steel
Pig iron

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Chemistry
Yellow Cake' an item of smuggling across border is

A crude from of heroin
Unreformed gold
Uranium oxide
A crude from of cocaine

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Chemistry
Which of the following is not a nitrogenous fetiliser?

Urea
Superphosphate
Ammonium sulphate
Ammonium nitrate

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Chemistry
Citric acid is present in free form in

Tamarind
Apple
Lemon
Milk

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