Chemistry – Acids, Bases and Salts

1. Which of the following statements regarding Metallic oxides is/are true?

  1. Metallic oxides do not react with acids
  2. Metallic oxides are referred to as basic oxides
  3. Metallic oxides produce only water when reacting with acids
  4. All metallic oxides are soluble in water
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Answer: Option B. Metallic oxides are referred to as basic oxides

2. Which acid is commonly found in Grapes, Bananas, and Tamarind?

  1. Tartaric Acid
  2. Formic Acid
  3. Acetic Acid
  4. Oxalic acid
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Answer: Option A. Tartaric Acid

3. What is the pH level of human blood?

  1. 6.3
  2. 7.4
  3. 8.7
  4. 5.5
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Answer: Option B. 7.4

4. What are the products formed when a metal carbonate reacts with an acid?

  1. Only Salt
  2. Only Water
  3. Carbon Dioxide Gas and Water
  4. Salt, Water, and Carbon Dioxide Gas
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Answer: Option D. Salt, Water, and Carbon Dioxide Gas

5. What gas is produced when a metal reacts with an acid?

  1. Oxygen
  2. Carbon Dioxide
  3. Hydrogen
  4. Nitrogen
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Answer: Option C. Hydrogen