Quiz for Group 13 and 14

Q1: Which of the following elements has the highest ionization enthalpy in group 13?

A. Boron B. Aluminium C. Gallium D. Thallium

Q2: Which element among group 14 shows maximum catenation?

A. Carbon B. Silicon C. Germanium D. Lead

Q3: The inert pair effect is most prominent in:

A. Boron B. Aluminium C. Thallium D. Gallium

Q4: Which of the following is amphoteric in nature?

A. B2O3 B. Al2O3 C. Ga2O3 D. In2O3

Q5: Which of the following is a Lewis acid?

A. BF3 B. B2H6 C. NH3 D. H2O

Q6: The stability of +1 oxidation state increases down the group in:

A. Group 13 B. Group 14 C. Group 15 D. Group 16

Q7: Which of the following elements forms π-bonds in its compounds?

A. Carbon B. Silicon C. Germanium D. Lead

Q8: Aluminium does not show +1 oxidation state because:

A. It is a transition metal B. It has no d-orbitals C. It is too small D. Inert pair effect is negligible

Q9: Which of the following is used in the preparation of semiconductors?

A. Boron B. Silicon C. Gallium D. Lead

Q10: What is the structure of diborane (B2H6)?

A. Planar B. Tetrahedral C. Bridge bonds D. Linear