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Chemistry

Chemistry
The metal ion present in Vitamin B12 is

Nickel
Iron
Zinc
Cobalt

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Chemistry
CNG used in automobiles to check pollution, mainly consists of

CO2
N2
CH4
H2

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Chemistry
Which of the following is not present in RNA

Thymine
Ribose
Uracil
Phosphate

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

Methane
Nitrogen
Hydrogen
Helium

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Chemistry
Which of the following alloy is used in making magnet ?

Magnalium
Alnico
Duralumin
Stainless steel

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Chemistry
Bleaching action of moist sulphur di-oxide is because of its

Acidic property
Oxidising property
Basic property
Reducing property

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