General Knowledge - Chemistry

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  • Section 1
"It takes a very long time to become young."
- Pablo Picasso

The nucleus of an atom consists of

A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above


The number of moles of solute present in 1 kg of a solvent is called its

A. molalityB. molarity
C. normalityD. formality


The most electronegative element among the following is

A. sodiumB. bromine
C. fluorineD. oxygen


The metal used to recover copper from a solution of copper sulphate is

A. NaB. Ag
C. HgD. Fe


The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

A. p-electrons in Ne(Z = 10)
B. s-electrons in Mg(Z = 12)
C. d-electrons in Fe(Z = 26)
D. p-electrons in CI(Z = 17)


The metallurgical process in which a metal is obtained in a fused state is called

A. smeltingB. roasting
C. calcinationsD. froth floatation

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