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Heavy Metal and Radioactive Pollution

Telangana Open School (TOSS) · Class 12 · Chemistry

Most important questions from Heavy Metal and Radioactive Pollution for Telangana Open School (TOSS) Class 12 Chemistry board exam 2026. MCQs, short answer, and long answer questions with marks.

45 questions30 flashcards5 concepts

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45 Questions·
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Sample Questions

1multiple choice
1 marks

What is the main anthropogenic source of lead pollution in urban areas?

Show answer

Vehicle exhausts from leaded petrol

Tetraethyl lead was added to petrol to improve engine efficiency, and its combustion released lead into the air via exhausts.

2multiple choice
1 marks

Which of the following metals bioaccumulates and biomagnifies in the food chain?

Show answer

Mercury

Mercury, especially methylmercury, bioaccumulates in organisms and biomagnifies up the food chain.

3multiple choice
1 marks

Which disease is caused by cadmium pollution in Japan?

Show answer

Itai-itai disease

Itai-itai disease in Japan was caused by cadmium replacing calcium in bones, leading to severe pain and fractures.

4multiple choice
1 marks

Which of the following is a natural source of radioactive pollution?

Show answer

Cosmic rays

Cosmic rays are high-energy radiations from space and are a natural source of ionizing radiation.

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Frequently Asked Questions

What are the important topics in Heavy Metal and Radioactive Pollution for Telangana Open School (TOSS) Class 12 Chemistry?
Heavy Metal and Radioactive Pollution covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Heavy Metal and Radioactive Pollution — Telangana Open School (TOSS) Class 12 Chemistry?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Heavy Metal and Radioactive Pollution?
There are 45 practice questions available for Heavy Metal and Radioactive Pollution. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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