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Chemistry

Chemistry
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Methane
Nitrogen
Helium
Hydrogen

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

Vitamin B
Vitamin C
Vitamin D
None of these

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Chemistry
The main chemical constituent of clay is

aluminium silicate
silicon oxide
zeolites
aluminium borosilicate

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Chemistry
Iodex, a pain relief balm, has the smell of ________ .

Propyl salicylate
Butyl salicylate
Methyl salicylate
Ethyl salicylate

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

8
18
32
2

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Chemistry
Detergents used for cleaning clothes and utensils contain

Bismuthates
Bicarbonates
Nitrates
Sulphonates

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MORE MCQ ON Chemistry

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