Class 7 Exam > Class 7 Questions > Which of the following is not a base?a)Magnes...
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Which of the following is not a base?
- a)Magnesium hydroxide
- b)Calcium hydroxide
- c)Hydrocholric acid
- d)Sodium hydroxide
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following is not a base?a)Magnesium hydroxideb)Calcium hy...
Calcium Carbonate is not a base because:
- Definition of a base:
Bases are substances that can accept protons (H⁺ ions) or donate hydroxide ions (OH⁻ ions) in a chemical reaction. They have a pH greater than 7.
- Calcium Carbonate:
Calcium carbonate (CaCO₃) is a chemical compound that is commonly found in rocks and shells. It is not a base because it does not ionize in water to produce hydroxide ions (OH⁻). When calcium carbonate reacts with acids, it forms salts and releases carbon dioxide gas, but it does not produce hydroxide ions like typical bases.
- Examples of bases:
1. Magnesium hydroxide (Mg(OH)₂)
2. Calcium hydroxide (Ca(OH)₂)
3. Sodium hydroxide (NaOH)
- Acid-Base reactions:
Bases like magnesium hydroxide, calcium hydroxide, and sodium hydroxide can neutralize acids by accepting protons to form water and a salt. This is a characteristic reaction of bases.
In conclusion, calcium carbonate is not considered a base because it does not fit the definition of a base based on its chemical properties and behavior in reactions with acids.
- Definition of a base:
Bases are substances that can accept protons (H⁺ ions) or donate hydroxide ions (OH⁻ ions) in a chemical reaction. They have a pH greater than 7.
- Calcium Carbonate:
Calcium carbonate (CaCO₃) is a chemical compound that is commonly found in rocks and shells. It is not a base because it does not ionize in water to produce hydroxide ions (OH⁻). When calcium carbonate reacts with acids, it forms salts and releases carbon dioxide gas, but it does not produce hydroxide ions like typical bases.
- Examples of bases:
1. Magnesium hydroxide (Mg(OH)₂)
2. Calcium hydroxide (Ca(OH)₂)
3. Sodium hydroxide (NaOH)
- Acid-Base reactions:
Bases like magnesium hydroxide, calcium hydroxide, and sodium hydroxide can neutralize acids by accepting protons to form water and a salt. This is a characteristic reaction of bases.
In conclusion, calcium carbonate is not considered a base because it does not fit the definition of a base based on its chemical properties and behavior in reactions with acids.
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Community Answer
Which of the following is not a base?a)Magnesium hydroxideb)Calcium hy...
Calcium carbonate is a salt, while all other are bases.
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Which of the following is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 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 is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer?.
Which of the following is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer? for Class 7 2024 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 is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a base?a)Magnesium hydroxideb)Calcium hydroxidec)Hydrocholric acidd)Sodium hydroxideCorrect answer is option 'C'. Can you explain this answer?.
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