Electrolysis Very Short Ans Concise Class-10 ICSE Chemistry Selina Solutions Chapter-6. We Provide Step by Step Answer of Very Short Ans Questions of Exercise-6 for ICSE Class-10. The given Solutions are according to the Latest editions. Visit the official Website CISCE for detail information about ICSE Board Class-10.
Electrolysis Very Short Ans Concise Class-10 ICSE Chemistry Selina Solutions Chapter-6
| Board | ICSE |
| Book / Publication | Concise / Selina |
| Subject | Chemistry |
| Class | 10th |
| Writer | Dr SP Singh |
| Chapter-6 | Electrolysis |
| Topics | Very Short Ans |
| Edition | 2025-2026 |
Very Short Ans Questions on Electrolysis
Page-120
Que-1: (Choose the correct word to fill in blank)
Cations are formed by …………… (loss/gain) of electrons and anions are formed by …………… (loss/gain) of electrons.
Ans: Cations are formed by loss of electrons and anions are formed by gain of electrons.
Que-2: Match the following in Column A with the correct answer from the choices given in Column B:
| Column A | Column B |
|---|---|
| 1. Ammonium hydroxide solution | (i) Contains only ions. |
| 2. Dilute hydrochloric acid | (ii) Contains only molecules |
| 3. Carbon tetrachloride | (iii) Contains ions and molecules |
Ans:
| Column A | Column B |
|---|---|
| 1. Ammonium hydroxide solution | (iii) Contains ions and molecules |
| 2. Dilute hydrochloric acid | (i) Contains only ions |
| 3. Carbon tetrachloride | (ii) Contains only molecules |
Que-3: Name the kind of particles present in:
(i) Sodium hydroxide solution
(ii) Carbonic acid.
(iii) Sugar solution
Ans:
(i) Strong electrolyte — Sodium (Na+) ions and hydroxide (OH–) ions.
(ii) Weak electrolyte — Ions (H+, HCO3, CO32- ) and molecules (H2CO3)
(iii) Non-electrolyte — Molecules of sugar soln.
Que-4:
(a) What kind of particles will be found in a liquid compound which is a non-electrolyte?
(b) If HX is a weak acid, what particles will be present in it’s dilute solution apart from those of water?
(c) What ions must be present in a solution used for electroplating a particular metal?
Ans:
(a) Non-electrolyte contains molecules.
(b) Molecules of HX and H+ and X- ions.
(c) The electrolyte must contain ions of the metal which is to be electroplated on the article.
Que-5: A strip of copper is placed in four different colourless salt solutions. They are KNO3, AgNO3, Zn(NO3)2 and Ca(NO3)2. Which one of the solutions will finally turn blue?
Ans: AgNO3 solution finally turn blue
Que-6: Here is an electrode reaction:
Cu ⟶ Cu2+ + 2e–. At which electrode (anode or cathode) would such a reaction take place ? Is this an example of oxidation or reduction ?
Ans: Cu ⟶ Cu2+ + 2e–.
This reaction takes place at anode.
This is an example of oxidation.
Que-7: Aqueous solution of nickel sulphate contains Ni2+ and SO42- ions
(i) Which ion moves towards the cathode?
(ii) What is the product at the anode?
Ans:
(i) Nickel ion moves towards the cathode.
(ii) Product at anode – Nil [Nickel anode loses electrons to give Ni2+ ions in solution]
Que-8: Identify: A gas which does not conduct electricity in the liquid state but conducts electricity when dissolved in water.
Ans: Hydrogen chloride gas
Que-9: Give one word or phrase for: Electrolytic deposition of a superior metal on a baser metal.
Ans: Electroplating
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