Chemical Bond (Pre Test)
Quiz
•
Chemistry
•
10th - 11th Grade
•
Practice Problem
•
Medium
Zulhilmi Zailani
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20 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
What is meant by Hydrogen Bonding?
Apakah yang dimaksudkan dengan Ikatan Hidrogen?
Electron sharing between two H atoms
Perkongsian elektron antara dua atom H
Bonds result from the sharing of electrons between non-metal atoms
Ikatan hasil perkongsian elektron atom bukan logam
Bonds between H atoms and atoms with high electronegativity
Ikatan antara atom H dengan atom-atom yang tinggi keelektronegatifan
A bond between 2 ions of different charge
Ikatan antara 2 ion yang berlainan cas
2.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Melting Point // Takat lebur : -114 ° C
Boiling Point // Takat didih : 78.3 °C
Why does ethanol have a high boiling point compared to its melting point?
Mengapakah ethanol mempunyai takat didih yang tinggi berbanding takat leburnya?
Because ethanol has strong ionic bonds
Kerana ethanol mempunyai ikatan ion yang kuat
Because ethanol is an intoxicating alcohol
Kerana ethanol adalah alkohol yang memabukkan
Because ethanol has a strong metal bond
Kerana ethanol mempunyai ikatan logam yang kuat
Because there are hydrogen bonds formed between ethanol molecules
Kerana terdapat ikatan hidrogen terbentuk antara molekul- molekul ethanol
3.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
Based on the diagram above, which is a Hydrogen Bond?
Berdasarkan rajah di atas, yang manakah merupakan Ikatan Hidrogen?
1
4
2
3
4.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
How many Hydrogen Bonds can be formed between water molecules, H₂O?
Berapakah Ikatan Hidrogen yang boleh terbentuk antara molekul air, H₂O?
4 bonds
No bond
2 bonds
1 bonds
5.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
There are 3 examples of atoms with high electronegativity, which usually form Hydrogen Bonds with H atoms, namely:
Terdapat 3 contoh atom yang tinggi keelektronegatifan, yang lazimnya membentuk Ikatan Hidrogen dengan atom H iaitu :
Fluorine, Oxygen & Nitrogen //
Florin, Oksigen & Nitrogen
Oxygen, Chlorine & Fluorine //
Oksigen, Klorin & Florin
Fluorine, Iodine & Bromine //
Florin, Iodin & Bromin
Sodium, Potassium & Oxygen //
Natrium, Kalium & Oksigen
6.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
What causes wavy hair to become slightly straight when wet (exposed to water)?
Apakah punca rambut yang beralun akan menjadi sedikit lurus ketika basah (terkena air) ?
The water molecules will harden as a result of the reaction with the hair
Molekul air akan mengeras hasil tindak balas dengan rambut
Hydrogen bonds formed between water molecules and hair proteins
Ikatan Hidrogen yang terbentuk antara molekul air dengan protein rambut
Because of the Hydrogen Bonds formed between the water molecules in the hair
Kerana Ikatan Hidrogen yang terbentuk antara molekul- molekul air dalam rambut
Reaction between hair and protein water
Tindak balas antara rambut dengan air protein
7.
MULTIPLE CHOICE QUESTION
15 mins • 5 pts
What is meant by Dative Bond?
Apakah yang dimaksudkan dengan Ikatan Datif?
A covalent bond is the result of sharing electrons from both atoms
Ikatan Kovalen dimana hasil perkongsian elektron dari kedua- dua atom
Weak attraction between molecules
Daya tarikan yang lemah antara molekul- molekul
Covalent bond where the two shared electrons (forming a bond) come from only 1 atom
Ikatan Kovalen dimana kedua elektron yang dikongsi (membentuk ikatan) berasal daripada 1 atom sahaja
A bond results from the transfer of electrons from a metal atom to a non-metal atom
Ikatan hasil daripada pemindahan elektron daripada atom logam kepada atom bukan logam
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