[REVISION] BAB 3 KIMIA F4

[REVISION] BAB 3 KIMIA F4

6th - 8th Grade

23 Qs

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[REVISION] BAB 3 KIMIA F4

[REVISION] BAB 3 KIMIA F4

Assessment

Quiz

Chemistry

6th - 8th Grade

Practice Problem

Hard

Created by

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Rajah menunjukkan formula kimia bagi kalium heksasianoferat(III) trihidrat.

Apakah jisim relatif sebatian ini?

[Jisim atom relatif : H =1; C= 12; N= 14; O= 16; K= 39; Fe = 56]

A - 141

B - 256

C - 389

D - 422

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Berapakah jisim fosforus yang mengandungi dua kali ganda bilangan atom yang

terdapat dalam 14 g ferum?

[Jisim atom relatif : P =31; Fe = 56]

A - 62.0 g

B - 28.0 g

C - 15.5 g

D - 10.7 g

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Jadual 1 menunjukkan formula kimia hasil pembakaran suatu unsur.

Jika 2 mol setiap unsur dibakar dalam oksigen secara lengkap, unsur yang manakah memerlukan isi padu oksigen yang paling kurang?

A - Kalium

B - Kalsium

C - Aluminium

D - Zink

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Rajah menunjukkan dua balang gas yang diisi masing-masing dengan gas klorin dan oksigen masing-masing.

Antara berikut, pernyataan manakah benar tentang gas klorin dan oksigen dalam balang gas X dan Y?

[Jisim atom relatif : O = 16; Cl = 35.5]

A - Bilangan molekul gas dalam kedua-dua balang gas adalah sama.

B - Jarak di antara molekul dalam balang gas Y lebih besar daripada balang gas X.

C - Balang gas X mengandungi bilangan mol gas yag lebih tinggi.

D - Isi padu kedua-dua gas adalah sama.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Suatu oksida ferum mempunyai formula FexOy. Apabila 4.80 g oksida ini bertindak balas dengan gas hidrogen, 3.36 g ferum terbentuk. Apakah nilai x dan y?

[Jisim atom relatif : O = 16; Fe = 56]

A - x = 1, y = 2

B - x = 1, y = 1

C - x = 2, y = 3

D - x = 3, y = 4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4.16 g unsur W bertindak balas dengan 1.92 g oksigen untuk membentuk oksida logam W. Formula empirik bagi oksida logam ini ialah W2O3. Berapakah jisim atom relatif W?

[Jisim atom relatif : O = 16]

A - 27

B - 52

C - 56

D - 104

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