Analytical Chemistry — Chemistry STD 10 — Question

The list of some organic compounds is given below:
Ethanol, ethane, methane, ethyne and ethene
From the above list, name a compound:
Formed by the dehydration of ethanol by concentrated sulphuric acid.

Hovv will you differentiate that vvhether the given gas is ethane or ethene?

For the substance listed below, explain its role in the extraction of aluminium: Sodium hydroxide

Name the gas produced on warming ammonium sulphate with sodium hydroxide solution.

Name the metal which is a constituent of Blood pigment ?

Write the balanced equation for the reaction of dilute hydrochloric acid with the following: Sodium hydrogen carbonate

Identify the cation of the following case:
NaOH solution when added to solution (A) gives a reddish brown precipitate.

Name the ions furnished by : a weak alkali

The gas evolved on reaction of aluminium with boiling concentrated caustic alkali solution.

Name the Following:
Product obtained by heating concentrated nitric acid.