Chemistry Question Bank

The power of halides of boron to act as Lewis acids decreases in the order:

Which of the following is a false statement ?

Which of the following is correct?

All members of group 14 when heated in oxygen form oxides. Which of the following is the correct trend of oxides ?

Boron cannot form which one of the following anions? (a) BF⁻ (b) BH⁻

H₃BO₃ is:

The structure of diborane (B₂H₆) contains :

Boric acid H₃BO₃ and BF₃ have the same number of elec- trons. The former is a solid and the latter is a gas. The reason is:

In B₂H₆:

The geometry of a complex species can be understood from the knowledge of type of hybridisation of orbitals of central atom. The hybridisation of orbitals of central atom in [B(OH)₄]– and the geometry of the complex a…

The number of OH units directly linked to boron atoms in Na₂B₄O₇.10H₂O is:

What happens when a mixture of cobalt oxide and borax is heated in a flame on a loop of platinum wire ?

The correct order of atomic radii in group 13 elements is (NEET 2018)

Borazole, B₃N₃H₆ is related to benzene as:

Identify X and Y in the following reaction. NaBH 140ºC C H Cl BCl NH Cl X Y + ¾¾¾¾® ¾¾¾¾®

Which type of silicate is shown in the given figure (Guj. CET 2010)

Which of the following statements about anhydrous alu- minium chloride is correct?

BF₃ is used as catalyst in several industrial processes due to its:

The basic structural unit of silicates is (NEET 2013)

Which is the hardest compound of boron ?

The exhibition of highest co-ordination number depends on the availability of vacant orbitals in the central atom. Which of the following elements is not likely to act as central atom in MF - ?

Which of the following compounds are formed when BCl₃ is treated with water ?

Which of the following compounds is known as inor- ganic benzene?

Which one of the following statements regarding BF₃ is not correct?

The element Z = 114 has been discovered recently. It will belong to which of the following family/group and electronic configuration ? (NEET 2017)