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Chemistry

Chemistry
Which one of the following is known as the 'brown coal'?

Coke
Lignite
Bituminous
Anthracite

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Chemistry
Number of hydrogen atoms in a Glucose molecule

14
8
6
12

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Chemistry
The most abundant element by number in the living system is :

Hydrogen
Oxygen
Nitrogen
Carbon

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Chemistry
The metal present in vitamin B12 is

Mo
Co
Mg
Fe

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Chemistry
Nitrogen in water is commonly found in the form of

Nitric oxide
Nitrous oxide
Nitrate
Nitrite

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Chemistry
The coordination number of body centered atom in cubic structure is

8
4
6
10

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MORE MCQ ON Chemistry

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