Question

quiz questi
on related to chemistry
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Answer 1

Answer:

1.  

The nucleus of an atom consists of

A. electrons and neutrons

B. electrons and protons

C. protons and neutrons

D. All of the above

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2.  

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

A. molality

B. molarity

C. normality

D. formality

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3.  

The most electronegative element among the following is

A. sodium

B. bromine

C. fluorine

D. oxygen

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4.  

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

A. Na

B. Ag

C. Hg

D. Fe

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5.  

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)

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6.  

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

A. smelting

B. roasting

C. calcinations

D. froth floatation

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