WorksheetsChemistry Test
Total questions: 20
Worksheet time: 14mins
Which of the following statements is NOT TRUE about the particle in gas?
The particles of gas move at high speed.
The collision between the gas particles and the wall of the container is elastic.
The gas particles more randomly in all direction.
The gas particles are arranged in regular patterns.
Why sodium chloride used in the preparation of soap?
To speed up the reaction to produce soap.
To produce soap which foams easily.
To reduce solubility of soap.
To make soap softer.
Which substance is a compound?
Sodium
Magnesium
Carbon
Naphthalene
Which statement explains why the size of the atoms of period 3 elements decrease across the period in the Periodic Table.
The number of protons increases.
The relative atomic mass increases.
The number of valence electrons increases.
The number of shells filled with electrons increases.
Diagram above shows the structural formula for a carbon compound. Which of the following is the IUPAC nomenclature for the compound?
3-methylbut-2-ene
2-methylbut-1-ene
2-methylbut-2-ene
3-methylbut-3-ene
Which substances are non-electrolytes?
I Ethanol
II Acetamide
III Lead (II) bromide
IV Sodium chloride
I and II only
I and III only
II and IV only
III and IV only
Which equation represents a redox reaction?
NaOH + HCl -> NaCl + H2O
Cu(NO3)2 + Zn -> Zn(NO3)2 + Cu
2KCl + Pb(NO3)2 -> PbCl2 + 2KNO3
MgCO3 + 2HCl -> MgCl2 + H2O + CO2
Compound M conduct electricity in aqueous solution or molten state. It also has a high melting point and boiling point. What is compound M?
CO2
NH3
CCl4
MgCl2
Which reaction has the highest rate of reaction?
Rusting of iron fence.
Decaying of death organism.
Burning of small piece of charcoal in the air.
Formation of stalactites and stalagmites in a cave.
Diagram above shows a magnesium atom compared to standard atom of carbon-12. What is the relative atomic mass of magnesium?
2
12
24
48
Which substance neutralizes a solution with the pH value of 10?
Distilled water.
Hydrochloric acid.
Potassium chloride.
Potassium hydroxide.
Which of the following is not a chemical properties of acids?
React with alkali to produce salt and hydrogen.
React with metal oxide to produce salts and water.
React with reactive metal to produce salt and hydrogen.
React with metal carbonate to produce salts, water and carbon dioxide.
Which of the following is a weak acid?
Hydrochloric acid.
Sulphuric acid.
Ethanoic acid.
Nitric acid.
Which one of these answers below is not the classification of Rate of Reaction?
Fast reaction
Moderate reaction
Slow reaction
In the statement below, which one is correct?
The higher the temperature of sodium thiosulphate solution, the higher the time taken for 'X' mark to disappear.
Temperature does not affect the rate of reaction.
The rate of reaction increases as the size of the reaction increase.
The presence of catalyst increases the rate of reaction
Choose the correct answer.
The vertical columns in the Periodic Table called as Period.
Elements in group 18 consist of He, Xe and Li.
Elements in the same group will have the same reactivity.
Elements in the periodic table are arranged in ascending order of the proton number.
Which one is not correct?
Ionic bond is formed by the transfer of electrons between a metal atom and non-metal atom.
Ionic bond involves valence electron while covalent bond involves all electrons in an atom.
Covalent bond is formed between non-metal atoms.
Atoms that donate an electron will form a positively-charged ion.
Which one is not the physical properties of salt crystal?
Has flat surface
same crystal of different sizes still have the same geometrical shape
doesn't have a fixed angle between two adjacent surfaces.
different crystal have different geometrical shape.
Which of the following is the side effect of mercury in the treatment of skin product?
Damage to the kidney.
Cause skin allergy.
Clogging of skin pores.
Skin becomes dry.
Which of the following diagram shows the arrangement of particles in bronze?
