Skip to main content
Super TutorResources
Chapter 2 of 12
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Important Questions

Exploring Substances: Acidic, Basic, and Neutral

CBSE · Class 7 · Science

Most important questions from Exploring Substances: Acidic, Basic, and Neutral for CBSE Class 7 Science board exam 2026. MCQs, short answer, and long answer questions with marks.

44 questions68 flashcards5 concepts

Interactive on Super Tutor

Studying Exploring Substances: Acidic, Basic, and Neutral? 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 7 students started this chapter today

44 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple correct

Which of the following substances are basic in nature?

Show answer

Soap solution, Lime water, Baking soda solution

Soap solution, lime water, and baking soda solution are all basic substances. They turn red litmus paper to blue and feel slippery to touch. Vinegar and lemon juice are acidic.

2multiple correct

Which of the following are natural indicators?

Show answer

Turmeric, Red rose petals, Litmus, Purple cabbage

Turmeric, red rose petals, litmus, and purple cabbage are all natural indicators that can show different colors in acidic and basic solutions. Plastic strips are not natural indicators.

3multiple choice

What happens when an acid is mixed with a base?

Show answer

Neutralization occurs

When an acid is mixed with a base in proper amounts, neutralization occurs. This reaction produces salt and water, along with evolution of heat.

4multiple choice

Turmeric paper turns red in which type of solution?

Show answer

Basic solution only

Turmeric paper turns red only in basic solutions. It remains yellow in both acidic and neutral solutions, so it cannot distinguish between acids and neutral substances.

+40 more questions available

Practice All

Frequently Asked Questions

What are the important topics in Exploring Substances: Acidic, Basic, and Neutral for CBSE Class 7 Science?
Exploring Substances: Acidic, Basic, and Neutral covers several key topics that are frequently asked in CBSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Exploring Substances: Acidic, Basic, and Neutral — CBSE Class 7 Science?
Understand the core concepts first, then work through the 44 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 Exploring Substances: Acidic, Basic, and Neutral?
There are 44 practice questions available for Exploring Substances: Acidic, Basic, and Neutral. 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 Exploring Substances: Acidic, Basic, and Neutral

All 12 chapters — CBSE Class 7 Science Important Questions

For serious students

Get the full Exploring Substances: Acidic, Basic, and Neutral chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 7 Science.

Try Super Tutor Free
Try the full chapter — Free