Identify the correct statements from the following. i. Melting points and iviling points of group 13 elements are much higher than those of corresponding group 14 elements ii. SiO only exists at high temperatures iii. PbI ₄ does not exist iv. Buckminster fullerene contain twelve 6-membered carbon rings and twenty 5 - membered carbon rings.

Step-by-step solution

The melting and boiling points of group 13 elements are lower than those of corresponding group 14 elements due to higher atomic masses and greater number of bonds between the atoms of group 14 elements. Thus, (i) is incorrect. SiO is less stable than SiO ₂ so it exists only at higher temperatures. Thus, (ii) is correct. PbI ₄ does not exist as Pb prefers +2 state rather than +4 state due to inert pair effect. Thus, (iii) is correct Buckminster fullerene contains 20 six-membered and 12 five-membered rings. Thus, (i