Skip to main content
Super TutorResources
Chapter 14 of 18
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Important Questions

Substances in Common Use

Maharashtra Board · Class 9 · Science

Most important questions from Substances in Common Use for Maharashtra Board Class 9 Science board exam 2026. MCQs, short answer, and long answer questions with marks.

45 questions24 flashcards5 concepts

Interactive on Super Tutor

Studying Substances in Common Use? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.

Try Super Tutor — Free

1,000+ Class 9 students started this chapter today

45 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple correct

Which of the following substances are used to make food items porous and crispy?

Show answer

Baking soda (NaHCO₃), Baking powder

Baking soda and baking powder release CO₂ gas when heated, which makes batter porous and food items like cakes and dhokla fluffy.

2multiple correct

Which of the following are types of radioactive radiation?

Show answer

Alpha rays, Beta rays, Gamma rays

Radioactive substances emit three types of radiation: alpha (α), beta (β), and gamma (γ) rays, each with different properties and penetrating power.

3multiple choice

Alum is used in water purification because it helps in:

Show answer

Coagulation of impurities

Alum causes coagulation, where solid impurities in water come together, become heavy and settle down, making water clear.

4multiple choice

Teflon is used for coating cooking utensils because:

Show answer

Nothing sticks to its surface

Teflon's main property is that neither water nor oil sticks to its surface, making it ideal for non-stick cookware.

+41 more questions available

Practice All

Frequently Asked Questions

What are the important topics in Substances in Common Use for Maharashtra Board Class 9 Science?
Substances in Common Use covers several key topics that are frequently asked in Maharashtra Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Substances in Common Use — Maharashtra Board Class 9 Science?
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 Substances in Common Use?
There are 45 practice questions available for Substances in Common Use. 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.

More resources for Substances in Common Use

All 18 chapters — Maharashtra Board Class 9 Science Important Questions

For serious students

Get the full Substances in Common Use chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Maharashtra Board Class 9 Science.

Try Super Tutor Free
Try the full chapter — Free