Compounds Of Boron Preparations Properties Uses

An element that cannot form ${\mathrm{MF}}_6^{3-}$ ion is-

1.	Ga	2.	Al
3.	B	4.	In

Which of the following statements is not correct about diborane?

1.	Both the boron atoms are sp2 hybridised.
2.	There are two 3-centre-2-electron bonds.
3.	The four terminal B-H bonds are 2-centre-2-electron bonds.
4.	The four terminal hydrogen atoms and the two boron atoms lie in one plane.

Identify the correct relationship of stability from the options provided:

1.		2.
3.		4.