NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 13 & 14)Practice
The general trend in the properties of elements of carbon family shows that with increase in atomic number
Options
- Athe tendency towards catenation increases
- Bthe tendency to show +2 oxidation state increases
- Cmetallic character decreases
- Dthe tendency to form complexes with covalency higher than four decreases
Correct answer
B. the tendency to show +2 oxidation state increases
Step-by-step solution
Here statement B is correct as with increase in atomic number down the group the tendency to show +2 oxidation state increases due to inert pair effect. In carbon family, the tendency towards catenation decreases on moving down the group, because the strength of M - M bond decreases. Metallic character always increases on moving down the group. Carbon is strictly non-metallic; silicon is essentially a non-metal in its chemical property; germanium is a semimetal with pronounced metallic properties; tin and lead are