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Chemistry

Chemistry
Nitrogen is an essential constituent of all :

Carbohydrates
Vitamins
Proteins
Fats

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Chemistry
If there is one million Mg2+ ions in MgCl2, how many chloride ions are there?

Ten million
One million
Half a million
Two million

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Chemistry
In galvanization, iron is coated with

Zinc
Copper
Tin
Nickel

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

Vitamin B
Vitamin D
Vitamin C
None of these

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

4
Zero
–4
8

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Chemistry
The lowest layer of earth's atmosphere is

Troposphere
Mesosphere
Stratosphere
Ionosphere

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MORE MCQ ON Chemistry

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