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Chemistry

Chemistry
The most suitable unit for expressing nuclear radius is :

Micron
Angstrom
Fermi
Nanometre

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Chemistry
Muscle fatigue is caused by the accumulation of :

Oxalacetic acid
Lactic acid
Pyruvic acid
Uric acid

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Chemistry
Which of the following is the petroleum wax ?

Paraffin wax
Jojoba wax
Bees wax
Carnauba wax

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Chemistry
The most abundant element in the earth’s atmosphere is

Krypton
Argon
Nitrogen
Oxygen

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Chemistry
Which of the following type of coal has the lowest proportion of volatile matter ?

Peat
Anthracite
Bituminous
Lignite

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Chemistry
Which among the following is found in chlorophyll ?

Fe2+
A l3+
Ca2+
Mg2+

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