Questions

Which one of the following compounds is not a protonic acid?

Options

(a) B(OH)₃ (b) PO(OH)₃ (c) SO(OH)₂ (d) SO₂(OH)₂

Correct Answer:

B(OH)₃

Explanation:

No explanation available. Be the first to write the […]

Which compound is electron deficient?

Options

(a) BeCl₂ (b) BCl₃ (c) CCl₄ (d) PCl₅

Correct Answer:

BCl₃

Explanation:

No explanation available. Be the first to write the explanation for this question by […]

In graphide electrons are

Options

(a) localised on each C-atom (b) localised on every third C-atom (c) spread out between the structure (d) present in anti-bonding orbital.

Correct Answer:

localised on every third […]

Boron compounds behave as Lewis acid, because of their

Options

(a) ionisation property (b) electron deficient nature (c) acidic nature (d) covalent nature

Correct Answer:

electron deficient nature

Explanation:

Lewis acids are those […]

Aluminium (III) chloride forms a dimer because aluminium

Options

(a) belongs to 3rd group (b) can have higher coordination number (c) cannot form a trimer (d) has high ionization energy

Correct Answer:

can […]

Which of the following statements about H₃BO₃ is not correct

Options

(a) It has a layer structure in which planar BO₃ units are joined by hydrogen bonds (b) It does not act as […]

Carbon and silicon belong to (IV) group. The maximum coordination number of carbon in commonly occurring compounds is 4, whereas that of silicon is 6.This is due to

Options

(a) availability of low […]