Match the following columns Column I Column II Ammonium hydroxide solution Contains only ions Dilute hydrochloric acid Contains only molecules Carbon tetrachloride Contains ions and molecules

Ammonium hydroxide is a weak base. Therefore, it is a weak electrolyte. It dissociates partially in aqueous solutions. Therefore, it contains both ions and molecules in aqueous solutions. Dilute hydrochloric acid is a strong electrolyte. Therefore, it dissociates completely into ions. That is, it contains ions only. Carbon tetrachloride is a covalent compound. It does not dissociate into ions in aqueous solutions. Therefore, it contains only molecules. Column I Column II Ammonium hydroxide solution Contains ions and molecules Dilute hydrochloric acid Contains only ions Carbon tetrachloride Contains only molecules

For the electro-refining of copper, what is the cathode made up of?

In the electro-refining of copper, the cathode is made up of pure thin sheet of copper and the anode is made up of impure plate of copper and the electrolyte used here is aqueous copper sulphate solution.

Give a reason for the following. Conductivity of dilute hydrochloric acid is greater than that of acetic acid.

HCl is a strong electrolyte and hence it can dissociate completely in aqueous solution which make it a good conductor of electricity whereas acetic acid is a weak electrolyte and it partially dissociates into ions which makes it a poor conductor than dilute hydrochloric acid.

E M B I B E

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 20

EASY

10th ICSE

IMPORTANT

Earn 100

Name the kind of particles present in sodium hydroxide solution.

Important Questions on Electrolysis

EASY

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 20

Name the kind of particles present in carbonic acid.

EASY

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 20

Name the kind of particles present in sugar solution.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 21

State one appropriate observation for the following:
Electricity is passed through molten lead bromide.

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 22

Which of these will act as a non-electrolyte?

EASY

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 23

Some word/words are missing in the following statement. You are required to rewrite the statement in the correct form using the appropriate word/words.
Cations migrate during electrolysis.

EASY

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 24

Identify the weak electrolyte from the following:

MEDIUM

10th ICSE

IMPORTANT

All in One - ICSE Chemistry>Chapter 6 - Electrolysis>ARCHIVES*(Last 6 Years)>Q 25

Match the following columns