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7.0 KADAR TINDAK BALAS

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

What is the meaning of the rate of reaction?

Apakah maksud kadar tindak balas?

a)

Increase in quantity of reactant

Peningkatan kuantiti bahan tindak balas

b)

Decrease in quantity of reactant

Pengurangan kuantiti bahan tindak balas

c)

Increase in quantity of product against time

Peningkatan kuantiti hasil tindak balas melawan masa

d)

Decrease in quantity of product against time

Pengurangan kuantiti hasil tindak balas melawan masa

2.

Which unit is correct for the rate of reaction?

Unit yang manakah betul untuk kadar tindak balas?

a)

mol dm-3

b)

g mol-1

c)

g min-1

d)

KJ mol-1

3.

Which of the following reactions are fast reaction?

TIndak balas yang manakah adalah tindak balas cepat?

a)

Double decomposition

Penguraian ganda dua

b)

Fermentation

Penapaian

c)

Explosion

Letupan

d)

Respiration

Respirasi

4.

Rate of reaction is the _______ in quantity of reactants or product in a unit time.

Kadar tindak balas ialah _______ kuantiti bahan atau hasil tindak balas dalam satu unit masa.

(a)  

5.

Rate of reaction is _______ proportional 1/time.

Kadar tindak balas berkadar _______ dengan 1/masa.

(a)  

6.

Which unit is correct for the quantity of reactants or products?

Unit yang manakah betul untuk kuantiti bahan atau hasil tindak balas?

a)

g min-1

b)

mol dm-3

c)

kg

d)

dm3

7.

Which of the following reactions are slow reaction?

TIndak balas yang manakah adalah tindak balas perlahan?

a)

Displacement

Penyesaran

b)

Rusting

Pengaratan

c)

Combustion

Pembakaran

d)

Photosynthesis

Fotosintesis

8.

Which of the following classification is not true?

Antara yang berikut, yang manakah merupakan pengelasan yang tidak benar?

a)

Fireworks - fast reaction

Bunga api - tindak balas cepat

b)

Fermentation - slow reaction

Penapaian - tindak balas perlahan

c)

Photosynthesis - slow reaction

Fotosintesis - tindak balas perlahan

d)

Food decaying process - fast reaction

Penguraian makanan - tindak balas cepat

9.

Which of the following is not the observable and measurable changes during reaction?

Antara yang berikut, yang manakah perubahan yang tidak boleh diperhatikan dan diukur semasa tindak balas?

a)

Decrease in the mass of reactant

Pengurangan jisim bahan tindak balas

b)

Penambahan hasil tindak balas

Increase in quantity of product

c)

Decrease in the mass of product

Pengurangan jisim hasil tindak balas

d)

Formation of Precipitate

Pembentukan mendakan

10.

When a reaction occur, the quantity of reactants will be _______, while the quantity of product will be _______.

Sewaktu tindak balas berlaku, kuantiti bahan tidak balas akan _______, manakala kuantiti hasil tindak balas akan _______.

a)

increase, increase

bertambah, bertambah

b)

increase, decrease

bertambah, berkurang

c)

decrease, increase

berkurang, bertambah

d)

decrease, decrease

berkurang, berkurang