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Chemistry

Chemistry
The nuclear particles which are assumed to hold the nucleons together are

electrons
positrons
neutrons
mesons

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Chemistry
A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?

From pink to blue-green
From brown to blue-black
From brown to orange-red
From blue to pink

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Chemistry
In deep-sea diving, divers use a mixture of gases consisting of oxygen and

Nitrogen
Helium
Hydrogen
Argon

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Chemistry
Who first published the periodic table

Julius Lothar Meyer
Henry Moseley
Dmitri Mendeleev
John Dalton

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Chemistry
The National Chemical Laboratory is situated in

Pune
Bangalore
Patna
New Delhi

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Chemistry
The most abundant metal in the Earth’s crust is

Iron
Aluminium
Copper
Zinc

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MORE MCQ ON Chemistry

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