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Chemistry Mcqs

The valency of carbon Atom is __________ ?

The valency of carbon Atom is __________ ?

A. 1
B. 2
C. 3
D. 4

 
The valency of carbon is 4. As the atomic number of carbon is 6, it has a total of 6 electrons in one atom arranged in the following configuration. it needs to add 4 more electrons to the 2p sub-shell, or lose 4 electrons from the 2s and 2p sub-shells.

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Chemistry Mcqs, Everyday Science Mcqs

Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?

Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density?A. Graham’s Law
B. Gay-Lussac’s law
C. Boyle’s law
D. None of these

 

Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density? Read More »

Chemistry Mcqs, Everyday Science Mcqs