Chemistry Class 9 Chapter 12: Environmental Chemistry - Water
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Chapter summary
Chapter 12 of Chemistry for Class 9 is called "Environmental Chemistry - Water". It covers 9 learning outcomes of the Federal Board syllabus. You will learn to: state that water from natural sources may contain useful; recognize that some naturally occurring substances in. Parhayi.com has 173 MCQs, 68 short questions and 16 long questions for this chapter.
Topics in this chapter
- State that water from natural sources may contain useful…
- Recognize that some naturally occurring substances in…
- Recognize that some naturally occurring substances in…
- Explain the treatment of the domestic water supply.…
- Describe various water-borne diseases and the steps that…
- Identify the negative effects of water pollutants on life
- Explain water scarcity as an important issue faced by…
- Fertilizers State that urea, ammonium salts and nitrates…
- Explain the use of NPK fertilizers to provide the…
Sample questions
Try these questions from the chapter. The answers are for Premium students.
- List the impurities present in rain water. (3 marks)
- List some water-borne diseases. (3 marks)
- How do strict regulations and monitoring help to solve the water scarcity problem? (3 marks)
What Premium gives you in this chapter
- 173 MCQs with answers and explanations
- 68 short questions with full answers
- 16 long questions with answers
- 13 Learn cards
- 31 Activities and games
- chapter tests that show your weak topics
Chemistry is the study of matter and how it changes. Learn the definitions first, then practise equations, balancing and numericals until they feel easy.
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