The alkene $C_6H_{10}$ producing $OHC-(CH_2)_4-CHO$ on ozonolysis is

Explain the hybridization of carbon and the bond structure of ethene $\left( C_2H_4 \right)$ $OR$ Explain: Ethene is a planar molecule.

Acetone is formed by the ozonolysis of which of the following?

Addition of $OsO_4$ to cyclopentene would give a product which is

Consider compounds $A$,$B$,and $C$ with the following structural formulae:
$A = CH_3 - CH_2 - CH_2 - CH_2 - CH_2 - OH$
$B = CH_2 = CH - CH_2 - CH_2 - CH_3$
$C = HO - CH_2 - CH_2 - CH(OH) - CH_3$
For the conversion of $B$ from $A$,the reagent $(D)$ required is . . . . . . and the structural formula of the product $(E)$ obtained when $C$ undergoes the same reaction using excess reagent $(D)$ is . . . . . . .

Explain the preparation of alkenes by the hydrogenation of alkynes with examples.