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Chemistry

Chemistry
Which of the following is ozone depleting pesticide ?

Benzene
Methyl bromide
D.T.
Ethylene ozonide

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Chemistry
Which of the following vitamins is generally excreted by human in urine?

Vitamin C
Vitamin B
None of these
Vitamin D

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Chemistry
Greenhouse effect is caused by

Nitrogen dioxide
Carbon dioxide
Carbon monoxide
Nitrogen

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Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

Phenol + terepineol
O-cresol + terepineol
Chloroxylenol + terepineol
O-chlorophenoxylenol + terepineol

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Chemistry
The oxidation number of nickel in K4[Ni(CN)4] is

8
Zero
4
–4

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Chemistry
Which among the following is a carbohydrate ?

Hydrogen peroxide
Nylon
Turpentine
Cane-sugar

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