How Many  bonds Are There In?                         

In which one of the following cases, breaking of covalent bond takes place?

Which of the following does not contain coordinate bond?

BF₃ reacts with (CH₃)₃N to form an adduct (CH₃)₃N → BF₃. The bond length of B–F bond in the adduct is

Which substance has the greatest ionic character?

In pyrophosphoric acid,  bonds are respectively,

HI is covalent compound in which small positive charge is present on H and a small negative charge I, and the molecule is represented as . The dipole moment of HI is 0.38D and the bond length. H–I is 1.61Å. What fraction of charge is present on I?

The molecule having zero dipole moment is

Which of the following is having highest bond length?

The number and type of bonds between two carbon atoms in calcium cabide are

Select the one that is most stable species.