Kimia Form 4 - Bab 2 2022
Quiz
•
Chemistry
•
1st - 10th Grade
•
Practice Problem
•
Medium
justin cheng
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara bahan berikut, yang manakah mengandungi molekul?
zink
Natrium klorida
etanol
Magnesium oksida
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara set bahan berikut, yang manakah terdiri daripada semua molekul?
Aqua, sulfur dioksida, ammonium klorida dan karbon monoksida
Glukosa, natrium hidroksida, ammonia dan karbon dioksida
Iodin, glukosa, ammonia, dan kalsium karbonat
Ammonia, karbon dioksida, glukosa dan etanol
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ahli sains yang mencadangkan bahawa atom terdiri daripada elektron yang mengorbit di sekeliling nukleus ialah
Ernest Rutherford
J.J Thomson
James Chadwick
Neils Bohr
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Manakah antara konfigurasi elektron logam?
2.7
2.4
2.8.8.1
2.8.18.8.1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Isotop ialah atom yang berbeza dengan bilangan yang sama
proton, elektron dan neutron.
elektron tetapi bilangan proton yang berbeza.
proton tetapi bilangan neutron yang berbeza.
proton dan neutron tetapi bilangan elektron yang berbeza.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ujian yang manakah menunjukkan bahawa sampel air yang diberikan adalah tulen?
Ia mendidih pada suhu 100.
Ia melarutkan natrium klorida.
Ia menukar kuprum(II) sulfat kontang daripada putih kepada biru.
Ia bertindak balas dengan logam natrium untuk membentuk natrium hidroksida dan gas hidrogen.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Etanol dan air boleh dipisahkan dengan penyulingan kerana ia mempunyai perbezaan
ketumpatan
takat didih
keterlarutan
jisim molekul
Answer explanation
takat didih etanol adalah 78.37 °C
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