The number of hydrogen atoms that can be replaced by methyl groups in diborane is

The number of hydrogen atoms bridging the boron atoms in a diborane molecule is

What is the number of hydrogen atoms bridging the boron atoms in diborane?

What would be the formula of the next alkane if one hydrogen from butane is replaced by a methyl group?

The number of benzylic hydrogen atoms in ethylbenzene is :

When one or more hydrogen atoms of an aromatic hydrocarbon are replaced by the corresponding number of halogen atoms, the resulting compound are called as

State whether the following statement is true or false. In methane, all the hydrogen atoms can be replaced by chlorine atoms when the reaction takes place in presence of sunlight.

Alcohols can be replaced by-Cl group by the followin reagents: