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Telangana Open School (TOSS) · Class 12 · Chemistry

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

48 questions35 flashcards5 concepts

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48 Questions·
multiple choicemultiple correct

Sample Questions

1multiple choice
1 marks

What is the mole fraction of water in a solution containing 2 mol water and 3 mol alcohol?

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0.6

Total moles = 2 + 3 = 5. Mole fraction of water = 2/5 = 0.6.

2multiple choice
1 marks

Which of the following is a gas in liquid solution?

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Soda water

Soda water contains carbon dioxide gas dissolved in liquid water.

3multiple choice
1 marks

What is the unit of molarity?

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mol/L

Molarity is moles per litre, so its unit is mol/L.

4multiple choice
1 marks

Henry's law relates the solubility of a gas to its:

Show answer

Partial pressure

Henry's law states that the solubility of a gas is directly proportional to its partial pressure.

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Frequently Asked Questions

What are the important topics in Solutions for Telangana Open School (TOSS) Class 12 Chemistry?
Solutions 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 Solutions — Telangana Open School (TOSS) Class 12 Chemistry?
Understand the core concepts first, then work through the 48 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 Solutions?
There are 48 practice questions available for Solutions. 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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