SEBA Class 7 Science Important Chapter 5 Acids, Bases and Salts

SEBA Class 7 Science Important Chapter 5 Acids, Bases and Salts Solutions English Medium As Per SEBA New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 7 General Science Additional Solutions and select need one. SCERT Important Solutions For Class 7 General Science Download PDF. Important Notes for Class 7 Science SCERT.

SEBA Class 7 Science Important Chapter 5 Acids, Bases and Salts

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Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam SEBA Board Class 7 Science Additional Question Answer are part of All Subject Solutions. Here we have given SCERT Class 7 General Science Important Notes for All Chapters, You can practice these here.

Chapter: 5

IMPORTANT QUESTION ANSWER

A. Short Type Questions & Answers:

1. Name two substances that taste sour.

Ans: Lemon juice, Vinegar.

2. Which acid is found in curd?

Ans: Lactic acid.

3. What is the chemical nature of baking soda?

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Ans: Basic.

4. Name a natural indicator obtained from lichens.

Ans: Litmus.

5. What is the color of turmeric in basic solution?

Ans: Red.

6. What are neutral substances? Give one example.

Ans: Substances that are neither acidic nor basic. Example: Sugar solution.

7. What is the function of antacids?

Ans: To neutralise excess acid in the stomach.

8. What happens to blue litmus in acid?

Ans: It turns red.

9. Which base is used in soap making?

Ans: Sodium hydroxide.

10. What is formed during a neutralisation reaction?

Ans: Salt and water, with heat.

B. Fill in the Blanks:

1. Acids turn __________ litmus paper red.

Ans: Blue.

2. Turmeric paper turns __________ in basic solutions.

Ans: Red.

3. Baking soda is a __________ substance.

Ans: Basic.

4. The acid present in vinegar is __________.

Ans: Acetic acid.

5. China’s rose indicator turns __________ in acidic solutions.

Ans: Pink.

C. True or False: 

1. Vinegar is bitter in taste.

Ans: False.

2. China rose turns green in basic solution.

Ans: True.

3. Common salt solution is a neutral substance.

Ans: True.

4. All acids are harmful and man-made.

Ans: False.

5. Litmus paper is made from turmeric.

Ans: False.

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