Heavy Metal Contamination
Chemistry ⇒ Environmental Chemistry
Heavy Metal Contamination starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Heavy Metal Contamination.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A river near an industrial area is found to have high levels of lead and cadmium. Suggest two possible sources for these contaminants.
Describe one way in which heavy metal contamination can affect aquatic ecosystems.
Describe the role of chelating agents in the treatment of heavy metal poisoning.
Describe two major sources of heavy metal contamination in the environment.
Explain the difference between bioaccumulation and biomagnification in the context of heavy metal contamination.
Explain why children are more vulnerable to heavy metal poisoning than adults.
Explain why heavy metals are considered non-biodegradable pollutants.
A river near an industrial area is found to have high levels of lead and cadmium. Suggest two possible sources for these contaminants.
Which of the following heavy metals is commonly found in batteries and can contaminate soil if not disposed of properly?
(1) Cadmium
(2) Silver
(3) Gold
(4) Magnesium
Which of the following heavy metals is most commonly associated with neurological damage in children?
(1) Lead
(2) Zinc
(3) Iron
(4) Chromium
Which of the following is a common analytical technique for detecting heavy metals in water samples?
(1) Atomic Absorption Spectroscopy (AAS)
(2) Paper Chromatography
(3) Titration
(4) Distillation
Which of the following is a method used to remove heavy metals from contaminated water?
(1) Filtration
(2) Phytoremediation
(3) Chlorination
(4) Distillation
Fill in the blank: The chemical symbol for cadmium is __________.
Fill in the blank: The heavy metal commonly used in thermometers and fluorescent lamps is __________.
Fill in the blank: The heavy metal that can cause Itai-Itai disease is __________.
Fill in the blank: The maximum permissible limit of lead in drinking water as recommended by the World Health Organization is __________ mg/L.
True or False: All heavy metals are essential for human health in trace amounts.
True or False: Chromium(VI) is more toxic than Chromium(III).
True or False: Heavy metals can bioaccumulate in the food chain, leading to higher concentrations in top predators.
True or False: Phytoremediation is a cost-effective and environmentally friendly method for removing heavy metals from contaminated soils.
