Chemistry F5 Bab 1

Chemistry F5 Bab 1

Assessment

Quiz

Chemistry

6th - 8th Grade

Hard

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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Apakah maksud pengoksidaan?

What is the meaning of oxidation?

A Proses kehilangan oksigen The process of losing oxygen

B Proses kehilangan elektron The process of losing electroNS

C Proses perkongsian elektron The process of sharing electrons

D Proses penambahan hidrogen The process of gaining hydrogen

A. Proses kehilangan oksigen

The process of losing oxygen

B. Proses kehilangan elektron

The process of losing electrons

C. Proses perkongsian elektron

The process of sharing electrons

D. Proses penambahan hidrogen

The process of gaining hydrogen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

2. Rajah 1 menunjukkan tindak balas antara pita magnesium dengan larutan argentum nitrat.

Diagram 1 shows the reaction between a magnesium ribbon and silver nitrate solution.

Antara pernyataan berikut, yang manakah adalah betul?

Which of the following statements is correct?

A. Pepejal kelabu terbentuk.

A grey solid is formed.

B. Pita magnesium menjadi lebih tebal.

The magnesium ribbon becomes thicker.

C. Larutan argentum nitrat dioksidakan.

Silver nitrate solution is oxidised.

D. Larutan biru terhasil.

A blue solution is produced

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. Antara yang berikut, yang manakah merupakan agen pengoksidaan?

Which of the following is an oxidising agent?

A. Serbuk zink

Zinc powder

B. Air iodin

lodine water

C. Larutan kalium bromida

Potassium bromide solution

D. Hidrogen peroksida

Hydrogen peroxide

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. Antara yang berikut, yang manakah merupakan tindak balas redoks?

Which of the following is a redox reaction?

A. Tindak balas litium dengan air

Reaction of lithium and water

B. Peneutralan asid hidroklorik oleh larutan natrium hidroksida

Neutralisation of hydrochloric acid by sodium hydroxide solution

C. Penguraian kalsium karbonat

Decomposition of calcium carbonate

D. Pemendakan barium sulfat daripada larutan barium nitrat

Precipitation of barium sulphate from barium nitrate solution

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Antara persamaan kimia berikut, yang manakah melibatkan tindak balas redoks?

Which of the following chemical equations involves a redox reaction?

A. C(p/s) + O2(g) → CO2(g)

B. CaCO3(p/s) → CaO(p/s) + CO2(g)

C. 2NaOH(ak/aq) + H2SO4(ak/aq) → Na2SO4(ak/aq) + H2O(ce/l)

D. AgNO3(ak/aq) + NaCl(ak/aq) → AgCl(p/s) + NaNO3(ak/aq)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. Berapakah nombor pengoksidaan bagi sulfur dalam H2S?

What is the oxidation number of sulphur in H₂S?

A. -1

B. -2

C. +1

D. +2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7. Apabila bahan X direndam dalam asid nitrik cair, suatu gas terbebas. Dalam tindak balas ini, apakah bahan X?

When substance X is immersed in dilute nitric acid, a gas is released. In this reaction, what is substance X?

A. Alkali

Alkali

B. Garam

Salt

C. Agen penurunan

Reducing agent

D. Agen pengoksidaan

Oxidising agent

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