Ester

Ester

5th Grade

8 Qs

quiz-placeholder

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Ester

Ester

Assessment

Quiz

Chemistry

5th Grade

Hard

Created by

NOORSYAHIRAH KPM-Guru

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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The following chemical equation shows of reaction. What is the structural formula of compound A?

Persamaan kimia berikut menunjukkan suatu tindak balas. Apakah formula struktur bagi sebatian A?

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Media Image
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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Esterification between propanol and propanoic acid is added with a little of concentrated sulphuric acid. What is the function of the sulphuric acid in this reaction?

Pengesteran antara propanol dan asid propanoik ditambahkan dengan sedikit asid sulfurik pekat. Apakah fungsi asid sulfurik itu dalam tindak balas ini?

to prevent the ester formed from decomposing

untuk mencegah ester yang terbentuk daripada terurai

to lower the activation energy of reaction

untuk merendahkan tenaga pengaktifan tindak balas

to prevent propanol from being oxidised to propanoic acid

untuk mencegah propanol daripada teroksida kepada asid propanoik

to lower the temperature required for the reaction

untuk merendahkan suhu yang diperlukan untuk tindak balas

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Butan-1-ol reacts with ethanoic acid to produce

Butan-1-ol bertindak balas dengan asid etanoik menghasilkan

CH3COOC4H9

C2H5COOC4H9

C3H7COOC2H5

C4H9COOC4H9

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following pairs of substance used to prepare ester with the formula C2H5COOC2H5 is correct?

Antara pasangan bahan digunakan untuk menyediakan ester dengan formula C2H5COOC2H5 berikut, yang manakah betul?

Ethanol and ethanoic acid

Etanol dan asid etanoik

Ethanol and propanoic acid

Etanol dan asid propanoik

Propanol and ethanoic acid

Propanol dan asid etanoik

Propanol and propanoic acid

Propanol dan asid propanoik

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Apakah kumpulan berfungsi ester?

Karboksil

Karboksilat

Hidroksil

Alkena

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is the structural formula for an ester formed when ethanol, C2H5OH reacts with propanoic acid, C2H5COOH?

Apakah formula struktur bagi suatu ester yang terbentuk apabila etanol, C2H5OH bertindak balas dengan asid propanoik, C2H5COOH?

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7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

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Nama ester tersebut adalah

metil etanoat

etil metanoat

metil metanoat

metil etanoik

etil butanoat

8.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

Nama ester tersebut adalah

metil metanoat

etil etanoat

metil metilat

metil pentanoat

etil etanoat