Kuiz Kimia Tingkatan 5 Bab 1 Set 3

SELAMAT DATANG Kuiz Kimia Tingkatan 5 Bab 1 Set 3

KUIZ INI MENGANDUNGI 10 SOALAN

If you want to electroplate a steel key with silver, which of the following setups is correct?

The key is the cathode, a silver bar is the anode, and the electrolyte is silver nitrate.

The key is the cathode, a silver bar is the anode, and the electrolyte is sodium chloride.

The key is the anode, a carbon rod is the cathode, and the electrolyte is silver nitrate.

The key is the anode, a silver bar is the cathode, and the electrolyte is silver nitrate.

None

In the reaction Zn(p)+CuSO4(ak)→ZnSO4(ak)+ Cu(p), what is the role of the zinc metal, Zn?

It is the oxidizing agent.

It is the reducing agent.

It is a spectator ion.

It is the substance that is reduced

None

Which of the following defines an oxidation reaction in terms of hydrogen transfer?

A substance loses electrons

A substance gains oxygen.

A substance loses hydrogen

A substance gains hydrogen.

None

The process of purifying impure copper via electrolysis involves setting up a cell. How are the electrodes and electrolyte arranged?

Anode: Impure copper; Cathode: Pure copper; Electrolyte: NaCl(ak)

Anode: Carbon; Cathode: Impure copper; Electrolyte: CuSO4(ak)

Anode: Impure copper; Cathode: Pure copper; Electrolyte: CuSO4(ak)

Anode: Pure copper; Cathode: Impure copper; Electrolyte: CuSO4(ak)

None

What is the primary function of a salt bridge in a Daniell cell?

To allow electrons to flow between the two half-cells

To act as the site of oxidation or reduction

To mix the two electrolyte solutions

To allow ions to flow between the half-cells to maintain electrical neutrality.

None

Which of these halogens is the strongest oxidizing agent?

Bromine (Br2)

Iodine (I2)

Chlorine (Cl2)

Astatine (At2)

None

Which statement correctly compares a chemical cell and an electrolytic cell?

In both cells, the anode is the positive electrode

Both cells convert chemical energy to electrical energy.

A chemical cell involves a spontaneous redox reaction, while an electrolytic cell involves a non-spontaneous one.

In an electrolytic cell, oxidation occurs at the cathode.

None

What is the correct IUPAC name for the compound Cu2O?

Copper(I) oxide

Copper oxide

Copper(II) oxide

Dicopper monoxide

None

According to the principles of a chemical cell, which statement accurately describes the anode?

It is the negative terminal where oxidation occurs.

It is the positive terminal where oxidation occurs.

It is the positive terminal where reduction occurs.

It is the negative terminal where reduction occurs.

None

10.

In the blast furnace, what is the main reducing agent that converts iron(III) oxide to molten iron?

Carbon monoxide (CO)

Silicon dioxide (SiO2)

Calcium carbonate (CaCO3)

Carbon dioxide (CO2)

None

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