WorksheetsRevision: SPM 2022
Total questions: 10
Worksheet time: 10mins
Chemical wastes in the laboratory have a spesific method of disposal according to the type of material. Which of the following methods is correct to dispose the chemical waste?
Hydrogen peroxide waste with a low concentration can be poured directly into the laboratory's sink
Solution containing heavy metals must be kept in a dark reagent bottle
Solid wastes like glass and rubber must be disposed into the dustbin
Volatile waste should be stored in the container
Which of the following substances is an element
Water
Neon
Ethanol
Naphtalene
Diagram 4 shows the set -up of apparatus to determine the empirical formula of oxide of metal G. What is metal G?
Silver
Aluminium
Iron
Tin
Which of the following are the special characteristics of transition metals?
I Conduct electricity
II Act as catalyst
III Has low melting point
IV Form coloured compound
I and II
I and III
II and IV
III and IV
Which of the following property of ionic compound?
Exists as gas
Dissolves in organic solvent
Cannot conduct electricity
Has high melting poin and boiling point
Which of the following methods cannot determine the rate of reaction?
Determine the change in pressure of gas per unit time
Determine the volume of the gas given off per unit time
Determine the change in temperature of the reactant per unit time
Determine the change in mass of reactant per unit time
Which of the following metals is extracted from its ore through reduction reaction by carbon?
Mercury
Sodium
Lead
Silver
Duralumin is used in maufacturing of the body of aeroplane. Which of the following elements contains in duralumin?
I Zinc
II Carbon
III Magnesium
IV Aluminium
I and II
I and III
II and IV
III and IV
The discovery of graphene has opened a new chapter in the field of nanotechnology. Various existing applications can be improved or replaced with graphene that has superior and distinctive characteristics. Which of the following is correct about the physical property of graphene?
Impermeable
Hard but brittle
Electrical insulator
Heat insulator
Diagram 12 shows a telescope. Which of the following is used to make part X?
Lead crystal glass
Borosilicate glass
Soda lime glass
Fused silica glass
