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Kuiz penyediaan garam

Authored by NADZIRAH Moe

Chemistry

10th Grade

Used 1+ times

Kuiz penyediaan garam
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Manakah antara berikut adalah kaedah yang betul untuk menyediakan garam larut seperti kalium klorida (KCl)? / Which of the following is the correct method to prepare a soluble salt like potassium chloride (KCl)?

a) Tindak balas antara asid dan alkali / Reaction between an acid and a base
b) Tindak balas antara dua garam / Reaction between two salts
c) Tindak balas pengendapan / Precipitation reaction
d) Pemanasan langsung garam / Direct heating of the salt

Answer explanation

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Mengapa penunjuk fenolftalein digunakan dalam penyediaan kalium klorida? / Why is phenolphthalein indicator used in the preparation of potassium chloride?

a) Untuk menentukan titik akhir tindak balas / To determine the endpoint of the reaction
b) Untuk meneutralkan larutan / To neutralize the solution
c) Untuk melarutkan garam / To dissolve the salt
d) Untuk memendakkan garam / To precipitate the salt

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Mengapa penunjuk fenolftalein tidak perlu ditambah semasa penyediaan terakhir kristal kalium klorida? / Why should phenolphthalein indicator not be added during the final preparation of potassium chloride crystals?

a) Ia akan bertindak balas dengan kristal / It would react with the crystals
b) Ia akan mengubah warna produk akhir / It would alter the color of the final product
c) Ia tidak diperlukan selepas tahap peneutralan / It is unnecessary after the neutralization stage
d) Ia tersejat semasa pemanasan / It evaporates during heating

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dalam Aktiviti 6.19, apakah peranan asid hidroklorik (HCl) dalam penyediaan kalium klorida? / In Activity 6.19, what is the role of hydrochloric acid (HCl) in the preparation of potassium chloride?

a) Ia bertindak sebagai bes / It acts as a base
b) Ia meneutralkan kalium hidroksida / It neutralizes potassium hydroxide
c) Ia melarutkan kalium klorida / It dissolves potassium chloride
d) Ia menyejatkan air / It evaporates the water

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Manakah antara teknik berikut yang sesuai untuk mendapatkan kristal kalium klorida kering dalam Aktiviti 6.19? / Which of the following is an appropriate technique to obtain dry potassium chloride crystals in Activity 6.19?

a) Penapisan / Filtration
b) Memanaskan campuran hingga kering / Heating the mixture to dryness
c) Penyejatan diikuti dengan penyejukan / Evaporation followed by cooling
d) Menambah lebih banyak fenolftalein / Adding more phenolphthalein

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mengapa lebihan kuprum(II) oksida perlu ditambah dalam Aktiviti 6.20? / Why must excess copper(II) oxide be added in Activity 6.20?

a) Untuk memastikan semua asid nitrik telah bertindak balas / To ensure all the nitric acid has reacted
b) Untuk meningkatkan hasil kuprum(II) nitrat / To increase the yield of copper(II) nitrate
c) Untuk menjadikan larutan lebih pekat / To make the solution more concentrated
d) Untuk meneutralkan asid dengan lebih cepat / To neutralize the acid faster

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah tujuan penapisan campuran selepas pemanasan dalam Aktiviti 6.20? / What is the purpose of filtering the mixture after heating in Activity 6.20?

a) Untuk menyingkirkan kuprum(II) oksida yang tidak larut / To remove insoluble copper(II) oxide
b) Untuk menyingkirkan kuprum(II) nitrat / To remove copper(II) nitrate
c) Untuk melarutkan kristal garam / To dissolve the salt crystals
d) Untuk menyejatkan air yang berlebihan / To evaporate excess water

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