Which electronic configuration corresponds to an element of group IIIA ?

Related Mcqs:

One of the outstanding features of boron is its ability to form__________________?

A. Molecular addition compounds B. Molecular crystals C. Semiconductors D. Ionic compounds...

Borax is a white crystalline solid and it is_________________?

A. More soluble in cold water B. More soluble in hot water C. Insoluble in water D. Soluble only in organic solvents...

Which of the following is metasilicic acid ?

A. H2SnO3 B. H2SiO3 C. H3AsO4 D. H3SbO4...

Identify the correct statement regarding CO_______________?

A. it combines with H2O to form carbonic acid B. it reacts with red blood cells of haemoglobin C. it is powerful oxidizing agent D. it is used to prepare aerated drinks...

Boric acid cannot be used__________________?

A. As antiseptic in medicine B. For washing eyes C. In soda bottles D. For enamel and glazes...