Acids, Bases and Salts MCQ for Class 7 Science Chapter 5 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 7 Science book Chapter 5 Acids, Bases and Salts with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 7 Science Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Acids, Bases and Salts. Each Questions has four options followed by the right answer. Download the Science Quiz Questions with Answers for Class 7 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 7 Science with Answers

Q1. Which of the following ion is responsible for the acidic nature of hydrochloric acid ?

(i) Hydrogen ion
(ii) Hydroxide ion
(iii) Chloride ion
(iv) Hydrochloride ion

(i) Hydrogen ion

Q2. The reaction in which an acid react with a base to form salt and water is called as

(i) Addition reaction
(ii) Displacement reaction
(iii) Neutralisation reaction
(iv) Substitution reaction

(iii) Neutralisation reaction

Q3. Out of these gases which one is used in fire extinguishers

(i) CO₂
(ii) SO₂
(iii) NO₂
(iv) H₂S

(i)

Q4. Litmus is extracted from

(i) curd
(ii) grapes
(iii) lichens
(iv) cabbage

(iii) lichens

Q5. Bases taste

(i) sweet
(ii) sour
(iii) bitter
(iv) salty

(iii) bitter

Q6. Ammonia that turns red litmus blue is:

(i) acidic
(ii) basic
(iii) neutral
(iv) none of these

(ii) basic

Q7. Which of the following is a strong Base?

(i) Copper hydroxide
(ii) Sodium hydroxide
(iii) Iron hydroxide
(iv) Calcium oxide

(ii) Sodium hydroxide

Q8. Products of a neutralisation reaction are always:

(i) an acid and a base
(ii) an acid and a salt
(iii) a salt and water
(iv) a salt and a base

(iii) a salt and water

Q9. Acid used in eye wash is

(i) carbonic acid
(ii) acetic acid
(iii) benzoic acid
(iv) boric acid

(iv) boric acid

Q10. The nature of bases is

(i) acidic
(ii) basic
(iii) neutral
(iv) all of these

(ii) basic

Q11. Ant’s bite injects:

(i) acetic acid
(ii) formic acid
(iii) hydrochloric acid
(iv) none of these

(ii) formic acid

Q12. Acid present in cold drinks (soft drinks) is

(i) Carbonic acid
(ii) Citric acid
(iii) Tartaric acid
(iv) Sulphuric acid

(i) Carbonic acid

Q13. Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are:

(i) red and blue
(ii) blue and red
(iii) pink and colourless
(iv) colourless and pink

(iv) colourless and pink

Q14. Acids taste

(i) sour
(ii) sweet
(iii) bitter
(iv) salty

(i) sour

Q15. Which of the following is a natural indicator?

(i) China rose petal
(ii) Turmeric
(iii) Litmus
(iv) All of these

(iv) All of these

Q16. Neutralisation reaction is the reaction between:

(i) acid and base
(ii) salt and water
(iii) base and salt
(iv) acid and salt

(i) acid and base

Q17. Sour things contain

(i) Salts
(ii) Neutral
(iii) Bases
(iv) Acids

(iv) Acids

Q18. Which of the following set of substances contain acids?

(i) Grapes, lime water
(ii) Vinegar, soap
(iii) Curd, milk of magnesia
(iv) Curd, vinegar

(iv) Curd, vinegar

Q19. The correct way of making a solution of acid in water is to

(i) add water to acid
(ii) add acid to water
(iii) mix acid and water simultaneously
(iv) add water to acid in a shallow container

(ii) add acid to water

Q20. Quick lime is used in soil when the soil is:

(i) basic
(ii) acidic
(iii) salty
(iv) neutral

(ii) acidic

Q21. Metal oxides react with water to form

(i) Acids
(ii) Minerals
(iii) Bases
(iv) Salts

(iii) Bases

Q22. Which of the following is an acid-base indicator?

(i) Vinegar
(ii) Lime water
(iii) Turmeric
(iv) Baking soda

(iii) Turmeric

Q23. The acid that our stomach releases is:

(i) sulphuric acid
(ii) nitric acid
(iii) hydrochloric acid
(iv) formic acid

(iii) hydrochloric acid

Q24. Litmus is extracted from