Carbon Family Preparations Properties Uses

A compound among the following having a similar structure to graphite is:

1. B
2. B₄C
3. B₂H₆
4. BN

In which of the following pairs, both the species are not isostructural?

1.		2.	Diamond, silicon carbide
3.		4.

The correct statement among the following is :

1.	Sn2+ is an oxidizing agent while Pb4+ is a reducing agent.
2.	Sn2+ and Pb2+ both are oxidizing agents.
3.	Sn4+ is a reducing agent while Pb4+ is an oxidizing agent.
4.	Sn2+ is a reducing agent while Pb4+ is an oxidizing agent.

The incorrect statement among the following is:

1. SnF₄ is ionic in nature.

2. PbF₄ is covalent in nature.

3. SiCl₄ is easily hydrolysed.

4. GeX₄ (X = F, Cl, Br, I) is more stable than GeX₂

Which of the following species is not stable?

1.	${\left[{\mathrm{SiCl}}_6\right]}^{2-}$	2.	${\left[{\mathrm{SiF}}_6\right]}^{2-}$
3.	${\left[{\mathrm{GeCl}}_6\right]}^{2-}$	4.	${\left[\mathrm{Sn}{\left(\mathrm{OH}\right)}_6\right]}^{2-}$

Which of the following oxide is amphoteric in nature?

1.	SnO2	2.	SiO2
3.	GeO2	4.	CO2