Group III A and IVA Elements Mcqs

Our collections of Multiple choice questions and answers focuses on study of Group III A and IVA Elements in Chemistry. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate Group III A and IVA Elements in Chemistry comprehensively.

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1.
Boron is non-netal whereas A1 is metal. It is due to

Small size

High nuclear charge

Both a and b

No authorized justification yet

2.
Boron in soil has been considered micronutrient for

Soil porocity

Proper growth of plants

Alkalinity of soil

All

3.
One of the outstanding features of boron is its ability to form

Molecular addition compounds

Molecular crystals

Semiconductors

Ionic compounds

4.
Substance which is found in dried up lakes of Tibet and California is

Tincal

Boric acid

Calcium carbonate

Colemanite

5.
Borax is a white crystalline solid and it is

More soluble in cold water

More soluble in hot water

Insoluble in water

Soluble only in organic solvents

7.
Special features of borate glass is that it is

Heat resistant

Low melting

Used to prepare chemical garden

Green in colour

11.
Which electronic configuration corresponds to an element of group IIIA?

1s2 2s2 2p3

1s2 2s2 2p6 3s2 3p1

1s2 2s2 2p4

1s2 2s2 2p6 3s2 3p6 4s2 3d1

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