Choose from the following list of substances, as to what matches the description given below:
[Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum].
An aqueous salt solution used for testing sulfate radical.

Open in App

Solution

An atom, molecule, or ion that has an unpaired valence electron is called a radical. Because of these unpaired electrons, radicals are highly reactive,
Barium Chloride $(B a C l_{2})$ is used to test sulfate radicals.
To check the presence of sulfate radicals in a solution, the solution is acidified using a few drops of dilute hydrochloric acid, and adding a few drops of Barium Chloride $(B a C l_{2})$ solution. A white precipitate of barium sulfate forms if sulfate ions are present.
Therefore, Barium Chloride is used to test sulfate radicals in any solution.

Suggest Corrections

Similar questions

Q. Select from the list given (a to e) one substance in each case which matches the description given in parts (i) to (v). (Note: Each substance is used only one in the answer.)
(a) Nitroso Iron (II) sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
(d) Lead (II) chloride
(e) Sodium chloride.
(i) A compound which is deliquescent.
(ii) A compound which is insoluble in cold water, but soluble in hot water.
(iii) The compound responsible for the brown ring during the brown ring test of nitrate ion.
(iv) A compound whose aqueous solution is neutral in nature.
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution.

(b) From the list of substances given below, choose the pair required to prepare the salts (i) to (iii) in the laboratory and write down the relevant equations. The substances are
chlorine, iron, lead, lead nitrate solution, sodium nitrate solution, iron (III) carbonate, lead carbonate, iron (III) hydroxide, sodium hydroxide solution and dilute hydrochloric acid. The salts are
(i) sodium chloride.
(ii) lead chloride.
(iii) anhydrous iron (III) chloride.

Choose from the following list of substances, as to what matches the descriptions given below
Acetylene gas, aqua fortis coke, brass, barium chloride, bronze, platinum
The substance is an alloy of zinc, copper and tin.

Choose from the following list of substances, as to what matches the descriptions given below
Acetylene gas, aqua fortis coke, brass, barium chloride, bronze, platinum

A black powdery substance used for the
reduction of zinc oxide during its extraction.

Choose from the followings options an appropriate option:

An aqueous salt solution used for testing sulphate radical.

Join BYJU'S Learning Program

Choose from the following list of substances, as to what matches the description given below:[Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum].An aqueous salt solution used for testing sulfate radical.

Choose from the following list of substances, as to what matches the description given below:
[Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum].
An aqueous salt solution used for testing sulfate radical.