WorksheetsLAB SESSION QUIZ HM
Total questions: 13
Worksheet time: 4mins
Which of the following is NOT a precious metal?
Gold (Au)
Silver (Ag)
Palladium (Pd)
Iron (Fe)
What is the primary purpose of a wastewater treatment plant?
To collect rainwater
To treat wastewater before disposal
To store chemicals
To process solid waste
What is the purpose of metal digestion in the laboratory?
To melt metals for casting
To extract metals from ores
To dissolve metal samples for analysis
To separate metal alloys
What is the full name of ICP-OES?
Inductively Coupled Plasma Optical Emission Spectroscopy
Inductively Copper Plasma Optical Emission Spectroscopy
Instructively Coupled Plasma Optical Emission Spectroscopy
Instructively Copper Plasma Optional Emission Spectroscopy
What is a jar test used for in wastewater treatment?
Measuring pH levels
Determining metal content in waste
Testing chemical dosing for water treatment
Filtering solid waste
Which precious metal has the chemical symbol "Au"?
Silver
Platinum
Gold
Palladium
What is the atomic number of Silver (Ag)?
47
79
46
82
Which of the following metals is the rarest?
Gold (Au)
Silver (Ag)
Palladium (Pd)
Rhodium (Rh)
What is ISO 14001:2015 related to?
Quality management systems
Environmental management systems
Occupational health and safety
Food safety management
When mixing acid and water, which should be added first?
Acid to water
Water to acid
Both together
It does not matter
In aqua regia, which acids does it consist of?
Hydrochloric acid (HCl) and Nitric acid (HNO₃)
Hydrochloric acid (HCl) and Sulfuric acid (H₂SO₄)
Nitric acid (HNO₃) and Acetic acid (CH₃COOH)
Sulfuric acid (H₂SO₄) and Hydrochloric acid (HCl)
Which chemical is commonly used in a jar test to adjust pH levels?
Sodium Hydroxide (NaOH) / Caustic Soda
Poly Aluminium Chloride (PAC)
Ethanol
Why is a polymer added during a jar test process?
To remove heavy metals
To improve floc formation and settling
To reduce water hardness
To act as a disinfectant
