No. of electrons involved in bonding in diborane molecule?

• 10

• 11

• 12

• 13

Which of the following is known as "inorganic benzene"?

• Phosphazine

• Piperazine

• Borazine

• Pyridine

Which element is essentially present in pseudo halogens?

• Oxygen

• Halogen

• Carbon

• Nitrogen

The Oxidation states of Phosphorous and Nitrogen in Phosphonitrilic halides are respectively

• +II and +IV

• +IV and +V

• +III and +V

• +V and +III

No. of lone pairs and type of hybridization in "S" in SO₃ molecule are respectively

• 0 and sp²

• 1 and sp²

• 0 and sp³

• 1 and sp³

No. of lone pairs on the central atom and geometry of BrF₅ are respectively

• 0 and square planar

• 1 and square pyramidal

• 0 and square pyramidal

• 1 and trigonal bipyramidal

The geometry and hybridization in the central atom of IF₇ are respectively

• Octahedral and sp³d³

• Trigonal bipyramidal and sp³d²

• Pentagonal bipyramidall and sp³d³

• Octahedral and sp³d³

Which of the following is not a pseudohalogen?

• (CN)₂

• (OCN)₂

• (SCN)₂

• (NO₂)₂

The hybidizations of Phosphorous and Nitrogen in Phosphonitrilic halides are respectively

• sp² and sp³

• sp³ and sp²

• sp and sp³

• sp and sp²

When diborane is subjected to methylation, how many hydrogens are methylated in diborane?

• 3

• 2

• 4

• 6