Question

Hydrocarbon derivatives is:
A.Compounds formed by replacing one (or) more hydrogen atoms of the corresponding hydrogen with another atom (or) group of atoms
B.Compounds formed by replacing one (or) more carbon atoms of the corresponding hydrogen with another atom (or) group of atoms
C.Compounds formed by replacing one (or) more functional group of the corresponding hydrogen with another atom (or) group of atoms
D.Both A and B.

Answer 1

We know that hydrocarbons are made up of two elements hydrogen and carbon. We can say derivatives of hydrocarbons are identical to hydrocarbons but in the original hydrocarbon an atom is substituted by another atom. We can use derivatives of hydrocarbons as fuels.

Complete step by step solution:
We have to know that compounds of hydrocarbons are known as hydrocarbons. They contain only carbon and hydrogen as their elements. We can define derivatives of hydrocarbons as the compound which formed when hydrogen atoms are replaced by different types of several atoms of elements (or) groups of atoms. It is the common term that is used to indicate the several types of complex compound derived from molecules of hydrocarbon with one (or) more atoms of hydrogen being replaced by other groups of atoms (or) atoms. Halogenated hydrocarbons are compounds obtained from substitution of halogens; alcohols (or) phenols are obtained from substitution of hydroxyl groups. Carboxylic acids are derived from substitution of carboxyl groups. Ester, acyl halide, acid anhydride, amides, aldehydes, ketones, amines and nitriles, etc. could be considered to be the compounds obtained from hydrocarbons with intramolecular hydrogen atoms being replaced by corresponding atoms
So, those compounds that are formed by substituting one (or) more atoms of hydrogen of the corresponding hydrogen with other atom (or) groups of atoms are called hydrocarbon derivatives.
Therefore, the option (A) is correct.
For example: We can derive methanol from methane by replacing one of the hydrogen with a hydroxyl group. Methane is present in the gas phase and at room temperature, methanol is liquid.
And hence option A is correct.

Note: Generally, derivatives of hydrocarbons are used as fuels, in the synthesis of polymers such as polyethene, polystyrene, as starting material in drug and dyes synthesis, and also used as lubricating grease and oil.