
A hydrocarbon having general formula reacts with halogens. The reaction is known as


Important Questions on Practice Paper-7

Name the term defined as follows:
The process in which an atom or ion loses electrons.

Name the term defined as follows:
The process in which carbon atoms share electrons with one another to form long chains.

Name the term defined as follows:
A salt in which the hydrogen of an acid has been wholly replaced by a metal.

Name the term defined as follows:
The number of protons in the nucleus of an atom.

Name the term defined as follows:
A hydrocarbon with double or triple bonds.

The following observations are recorded during a series of experiments involving substance X:
When substance X is heated a reddish-brown gas is evolved along with a gas that relights a glowing wooden splinter. A yellow residue remains in the test tube.
(1) Name the reddish-brown gas.
(2) Name the gas which relights the glowing wooden splinter.

The following observations are recorded during a series of experiments involving substance X:
When substance X is heated a reddish-brown gas is evolved along with a gas that relights a glowing wooden splinter. A yellow residue remains in the test tube. In the addition of ammonium hydroxide to a solution of X, a white precipitate is formed which is insoluble in excess ammonium hydroxide. What is the cation present in substance X?
