99 Percentile Qs Bank for JEE MainChemistryp Block Elements (Group 13 & 14)
Identify the incorrect statements from the following. I. Tin in +2 state acts as reducing agent while lead in +4 state acts as strong oxidising agent. II. Silicon exists as both [ SiF ₆ ]²⁻ and [ SiCl ₆ ]²⁻ forms. III. The hybridisation of carbon in fullerene is s p^3 . IV. Among Ge , Sn and Pb lowest melting point is for Sn .
Options
- AI, IV
- BII, IV
- CII, III
- DIII, IV
Correct answer
C. II, III
Step-by-step solution
(II). [ SiF ₆ ]²⁻ is known but [ SiCl ₆ ]²⁻ does not exist, this is because due to larger size of Cl atom as compared to F atom it is not possible to accommodate six atoms of Cl around Si atom. (III). Fullerens structure have carbon atoms both in s p^2 and s p^3 hybridised system. Correct option is (c).