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WorksheetsChapter 4 States of Matter
Total questions: 23
Worksheet time: 12mins
In an ideal gas, the volume of gas molecules is considered: (Dalam gas ideal, isipadu molekul gas dianggap:)
Significant (Penting)
Equal to molar volume ((Sama dengan isipadu molar)
Negligible (Tidak ketara)
Dependent on pressure (Bergantung kepada tekanan)
Which condition causes real gases to deviate from ideal gas behaviour? (Keadaan manakah yang menyebabkan gas sebenar menyimpang daripada tingkah laku gas ideal?)
High temperature (Suhu tinggi)
Low temperature (Suhu rendah)
Low pressure (Tekanan rendah)
Ideal molar volume (Isipadu molar ideal)
The SI unit for pressure in the ideal gas equation is: (Unit SI bagi tekanan dalam persamaan gas ideal ialah:)
atm
bar
pascal (Pa)
mmHg
In an ionic lattice, the particles are held together by: (Dalam kisi ion, zarah-zarah diikat oleh:)
Covalent bonds
Hydrogen bonds
Electrostatic forces
Metallic bonds
Diamond is hard because:
It has metallic bonds
It has a giant covalent structure
It contains delocalised electrons
It has weak van der Waals forces
Which allotrope of carbon can conduct electricity? (Alotrop karbon manakah yang boleh mengalirkan elektrik?)
Diamond
Graphite
Buckminsterfullerene
Iodine
Why do ionic compounds conduct electricity when molten? (Mengapa sebatian ion mengalirkan elektrik apabila lebur?)
Atoms vibrate faster (Atom bergetar lebih laju)
Ions are free to move (Ion bebas bergerak)
Electrons become delocalised (Elektron menjadi terdelokalisasi)
Molecules break apart (Molekul terurai)
Graphite is soft because:
Covalent bonds are weak
Van der Waals forces between layers are weak
Electrons are fixed
It contains hydrogen bonds
Which property is true for ice?
Conducts electricity in solid state
Melting point higher than iodine
Insoluble in water
Metallic bonding present
Nanotubes conduct electricity because:
They contain ions
They have delocalised electrons
They have metallic bonds
They have hydrogen bonds
Which structure consists of positively charged metal ions surrounded by a sea of delocalised electrons? (Struktur manakah terdiri daripada ion logam bercas positif yang dikelilingi oleh lautan elektron terdelokalisasi?)
Ionic lattice
Metallic lattice
Giant molecular lattice
Simple molecular lattice
Why are metallic structures malleable and ductile? (Mengapa struktur logam boleh ditempa dan diregangkan?)
The ions are fixed in place (Ion tetap di tempatnya)
Layers of ions can slide while electrons hold the structure together (Lapisan ion boleh meluncur manakala elektron mengekalkan struktur)
Weak van der Waals forces exist (Terdapat daya van der Waals yang lemah)
The bonds are ionic (Ikatan adalah ionik)
Which type of crystal has high melting point, is insoluble in water, and does not conduct electricity? (Jenis kristal manakah mempunyai takat lebur tinggi, tidak larut dalam air, dan tidak mengalirkan elektrik?)
Giant covalent
Metallic
Ionic
Simple molecular
Which giant covalent substance is brittle and does not conduct electricity? (Bahan kovalen gergasi manakah yang rapuh dan tidak mengalirkan elektrik?)
Graphite
Silicon dioxide
Nanotubes
Graphene
Which structure has weak van der Waals forces between molecules and a low melting point? (Struktur manakah mempunyai daya van der Waals yang lemah antara molekul dan takat lebur rendah?)
Simple molecular
Metallic
Ionic
Giant covalent
Why do ionic compounds have high melting points? (Mengapa sebatian ion mempunyai takat lebur yang tinggi?)
Strong electrostatic forces between ions
Weak metallic bonds
Weak hydrogen bonds
Presence of free electrons
Which statement about real gases is correct? (Pernyataan manakah mengenai gas sebenar adalah betul?)
They behave ideally at low temperature (Bertindak secara ideal pada suhu rendah)
They deviate from ideal gas behaviour at high pressure (Menyimpang daripada tingkah laku gas ideal pada tekanan tinggi)
They have no intermolecular forces (Tiada daya antara molekul)
Their volume is negligible in all conditions (Isipadu tidak ketara dalam semua keadaan)
In the ideal gas equation PV = nRT, what does T represent?
Temperature in Celsius
Temperature in Kelvin
Time in seconds
Tension in Newtons
Which carbon allotrope has a football-like molecular shape of pentagons and hexagons? (Alotrop karbon manakah mempunyai bentuk molekul seperti bola sepak dengan pentagon dan heksagon?)
Graphite
Buckminsterfullerene
Diamond
Graphene
Which structure conducts electricity only when molten or in aqueous solution? (Struktur manakah mengalirkan elektrik hanya apabila lebur atau dalam larutan berair?)
Ionic lattice
Metallic lattice
Giant covalent lattice
Simple molecular lattice
Which type of bonding is present in water molecules within ice? (Jenis ikatan manakah terdapat dalam molekul air dalam ais?)
Ionic bonds
Covalent bonds
Metallic bonds
Van der Waals forces
Which structure has delocalised electrons and high melting point? (Struktur manakah mempunyai elektron terdelokalisasi dan takat lebur tinggi?)
Metallic lattice
Ionic lattice
Simple molecular lattice
Giant covalent lattice
Why is iodine's melting point higher than fluorine's? (Mengapa takat lebur iodin lebih tinggi daripada fluorin?)
Stronger metallic bonds
Stronger van der Waals forces due to more electrons
Ionic bonding
Presence of hydrogen bonding
