Question

chemistry
Question 24

Hydronium ion is formed when a molecule of water combines with:

1. Hydrogen atom

2. Proton

3. Hydrogen molecule

4. Oxygen atom

[1]

Question 25

The condition that is most appropriate for electroplating with nickel:

1. Electrolyte is molten copper sulphate

2. Anode should be made of impure nickel plate

3. Alternating current is used

4. Periodic replacement of cathode is needed.

[1]

Question 26

The hydroxide which is soluble in excess ammonium hydroxide:

1. Lead hydroxide

2. Ferrous hydroxide

3. Zinc hydroxide

4. Ferric hydroxide

[1]

Question 27

Which statement is not true for electrolysis?

1. Cations migrate towards cathode

2. Anions discharge at anode

3. Anions get reduced during electrolysis

4. Cations get reduced during electrolysis

[1]

Question 28

H2Y is the formula of a compound. What is the valency exhibited by Y?

1. 1

2. 2

3. 3

4. none of the above​

Answer 1

Answer:

24-proton

sorry ik only one

Answer 2

Answer:

24- 3. hydrogen molecule

26-4. ferric hydroxide

27-1.cation migret towards cathod