Kuiz Kimia Tingkatan 5 Bab 1 Set 3

SELAMAT DATANG Kuiz Kimia Tingkatan 5 Bab 1 Set 3

KUIZ INI MENGANDUNGI 10 SOALAN

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

Carbon monoxide (CO)

Calcium carbonate (CaCO3)

Silicon dioxide (SiO2)

Carbon dioxide (CO2)

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 a spectator ion.

It is the reducing agent.

It is the substance that is reduced

None

Which of these halogens is the strongest oxidizing agent?

Bromine (Br2)

Iodine (I2)

Chlorine (Cl2)

Astatine (At2)

None

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

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

To act as the site of oxidation or reduction

To mix the two electrolyte solutions

To allow electrons to flow between the two half-cells

None

What is the correct IUPAC name for the compound Cu2O?

Dicopper monoxide

Copper(I) oxide

Copper oxide

Copper(II) oxide

None

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

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.

Both cells convert chemical energy to electrical energy.

In both cells, the anode is the positive electrode

None

In the context of rusting, sacrificial protection involves connecting iron to another metal. For this to work, the other metal must be:

a very good electrical insulator

the same electropositivity as iron.

less electropositive (less reactive) than iron.

more electropositive (more reactive) than iron

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

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

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

None

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

It is the positive terminal where oxidation occurs.

It is the positive terminal where reduction occurs.

It is the negative terminal where oxidation occurs.

It is the negative terminal where reduction occurs.

None

10.

In the electrolysis of a DILUTE aqueous solution of copper(II) chloride (CuCl2) using inert electrodes, what is produced at the anode?

Oxygen gas

Hydrogen gas

Copper metal

Chlorine gas

None

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