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Chemistry

Chemistry
How many neutrons does iron have

26
30
13
8

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Chemistry
The property of hydrogen which distinguishes it from alkali metals is

Its non-metallic character
Its reducing character
Its affinity for non-metal
Its electropositive character

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Chemistry
Which among the following is found in chlorophyll ?

Fe2+
Ca2+
Mg2+
A l3+

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Chemistry
Which one is the simplest aromatic hydrocarbon

Chloride
Benzene
Aspirin
Picric acid

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Chemistry
Which of the following is an iron ore ?

Magnetite
Bauxite
Lignite
Nitrite

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Chemistry
An emulsion is a colloid of a

Gas in a solid
Gas in a liquid
Liquid in a gas
Liquid in a liquid

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