In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

Cu 2+ and Cl - and H + and OH -

In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

Cu 2+ and Cl - and H + and OH -

Which statement correctly describes the 2 electrodes?

The anode is positive and the cathode is negative

The anode is negative and the cathode is positive

The anode and cathode are both positive

The anode and cathode are both negative.

What happens at the positive electrode?

Negative non-metal ions are attracted

Positive non-metal ions are attracted

Positive metal ions are attracted

Negative metal ions are attracted

What does the Cathode (-) do to ions?

Give electrons to the Positive ions to turn them back into atoms

Take electrons from the positive ions?

Turn ions back into atoms by removing electrons

Turn atoms into ions by adding electrons

The diagram shows the electrolysis of lead(II) bromide using inert electrodes. Why does the bulb only light up when the lead(II) bromide is melted?

The ions in lead(II) bromide are acting as the mobile charge carriers when it is melted

Bromine atoms in lead(II) bromide are converted to ions when it is melted

Electrons flow through the lead(II) bromide when it is melted

There are no ions in solid lead(II) bromide

What is an electrolytic cell?

a cell that converts electrical energy into chemical energy

a cell that converts chemical energy into electrical energy

a cell that converts electrical energy into electrical energy

A cell that converts kinetic energy into potential energy.

In the diagram, each cell contains an aqueous solution of a single salt and all four electrodes are platinum. Electrodes Q and S increase in mass during the electrolysis but no gas is given off at Q and S.

The cation of the solution in cell 1 is different from the cation of the solution in cell 2.

The current flowing in cell 1 is greater than the current flowing in cell 2.

The cation in cell 1 is the same as in cell 2 but the solution in cell 1 is more concentrated than in cell 2.

The loss of mass of electrode P is less than the loss of mass of electrode R.

An experiment is set up as shown in the diagram below. Both electrodes P and Q are made of graphite. Which of the following gives the correct results as electrolysis proceeds?

Electrolytes: Aqueous copper(II) sulfate; Mass of P: Increase; Mass of Q: Remains unchanged

Electrolytes: Aqueous sodium chloride; Mass of P: Remains unchanged; Mass of Q: Increase

Electrolytes: Aqueous sodium chloride; Mass of P: Increase; Mass of Q: Remains unchanged

Electrolytes: Aqueous copper(II) sulfate; Mass of P: Remains unchanged; Mass of Q: Increase

Give 2 properties of metals that is not true

Insulators and Conductors of heat

Conductors of heat and malleable

Conductors of Electricity and Flexible

Conductors of heat and electricity

suggest two ways to protect against rusting

Use a dehumidifier and Galvanise (Sacrificial Protection)

Use a dehumidifier and spray with water

Add lots of oil to the edge and paint over

O bject is electroplated with copper using copper(II) sulfate. Which statement is correct ?

Reaction at negative electrode is Cu 2+ + 2e – → Cu

Positive electrode increases in mass

Concentration of Cu 2+ ions in solution decreases

Reduction occurs at positive electrode

What happens when molten NaCI is electrolysed in electrolytic cell?

Chlorine is produced at positive electrode

Sodium ions lose electrons at negative electrode

Electrons flow through liquid from -ve electrode to +ve electrode

Oxidation occurs at -ve electrode and reduction at +ve electrode

Electrolysis

Quiz

•

Chemistry

•

10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS2-5, HS-PS1-2, HS-PS3-5

Standards-aligned

Used 35+ times

FREE Resource

59 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of a positively charged ion?

positron

proton

cation

anion

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of a negatively charged ion?

negatron

electron

cation

anion

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of a negatively charged electrode?

cathode

anode

cation

anion

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of a positively charged electrode?

cathode

anode

cation

anion

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What state must the ionic compound be in to be electrolysed?

aqueous only

solid only

solid or aqueous only

molten or aqueous only

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What particle carries the charge in the wire?

electron

proton

ion

atom

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What particle carries the charge in the electrolyte?

electron

proton

ion

atom

Tags

NGSS.HS-PS2-5

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Electrolysis

59 questions

What is the name of a positively charged ion?

What is the name of a negatively charged ion?

What is the name of a negatively charged electrode?

What is the name of a positively charged electrode?

What state must the ionic compound be in to be electrolysed?

What particle carries the charge in the wire?

What particle carries the charge in the electrolyte?

Which non-metal is often used for electrodes?

In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

In an aqueous solution of copper chloride, which ions are attracted to the negative electrode?

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