AP EAPCET 16th May 2023 Shift 1 Solved Paper

Identify the correct statements from the following.
i. Melting points and boiling points of group 13 elements are much higher than those of corresponding group 14 elements
ii. SiO only exists at high temperatures
iii. PbI4 does not exist
iv. Buckminster fullerene contain twelve 6-membered carbon rings and twenty 5 - membered carbon rings.