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Which of the following statements about acids and bases are correct?
(i) Acids have a sour taste.
(ii) Bases turn red litmus paper blue.
(iii) Acids turn blue litmus paper red.
(iv) Bases have a pH less than 7.
(v) Neutral solutions have a pH of 7.
  • a)
    (i), (ii), and (iii) only
  • b)
    (i), (ii), (iii), and (v) only
  • c)
    (ii), (iii), and (iv) only
  • d)
    (i), (iii), and (v) only
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which of the following statements about acids and bases are correct?(i...
Acids have a sour taste (i), bases turn red litmus paper blue (ii), acids turn blue litmus paper red (iii), and neutral solutions have a pH of 7 (v). Bases have a pH greater than 7, not less.
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Most Upvoted Answer
Which of the following statements about acids and bases are correct?(i...
Understanding Acids and Bases
To determine which statements about acids and bases are correct, let's analyze each one:
Statement Analysis
- (i) Acids have a sour taste.
- Correct. Many acids, like citric acid in lemons, have a characteristic sour flavor.
- (ii) Bases turn red litmus paper blue.
- Correct. Bases are known to change the color of red litmus paper to blue, indicating their basic nature.
- (iii) Acids turn blue litmus paper red.
- Correct. Acids change blue litmus paper to red, confirming their acidic properties.
- (iv) Bases have a pH less than 7.
- Incorrect. Bases actually have a pH greater than 7, with stronger bases having even higher pH values.
- (v) Neutral solutions have a pH of 7.
- Correct. Pure water is a neutral solution and it has a pH of 7.
Conclusion
Based on the analysis above, the correct statements are:
- (i), (ii), (iii), and (v)
Thus, the correct answer is option 'b': (i), (ii), (iii), and (v) only.
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Which of the following statements about acids and bases are correct?(i) Acids have a sour taste.(ii) Bases turn red litmus paper blue.(iii) Acids turn blue litmus paper red.(iv) Bases have a pH less than 7.(v) Neutral solutions have a pH of 7.a)(i), (ii), and (iii) onlyb)(i), (ii), (iii), and (v) onlyc)(ii), (iii), and (iv) onlyd)(i), (iii), and (v) onlyCorrect answer is option 'B'. Can you explain this answer?
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Which of the following statements about acids and bases are correct?(i) Acids have a sour taste.(ii) Bases turn red litmus paper blue.(iii) Acids turn blue litmus paper red.(iv) Bases have a pH less than 7.(v) Neutral solutions have a pH of 7.a)(i), (ii), and (iii) onlyb)(i), (ii), (iii), and (v) onlyc)(ii), (iii), and (iv) onlyd)(i), (iii), and (v) onlyCorrect answer is option 'B'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Which of the following statements about acids and bases are correct?(i) Acids have a sour taste.(ii) Bases turn red litmus paper blue.(iii) Acids turn blue litmus paper red.(iv) Bases have a pH less than 7.(v) Neutral solutions have a pH of 7.a)(i), (ii), and (iii) onlyb)(i), (ii), (iii), and (v) onlyc)(ii), (iii), and (iv) onlyd)(i), (iii), and (v) onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements about acids and bases are correct?(i) Acids have a sour taste.(ii) Bases turn red litmus paper blue.(iii) Acids turn blue litmus paper red.(iv) Bases have a pH less than 7.(v) Neutral solutions have a pH of 7.a)(i), (ii), and (iii) onlyb)(i), (ii), (iii), and (v) onlyc)(ii), (iii), and (iv) onlyd)(i), (iii), and (v) onlyCorrect answer is option 'B'. Can you explain this answer?.
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