Acids, Bases and Salts — Practice Quiz
Maharashtra Board · Class 9 · Science
Try a 4-question quiz on Acids, Bases and Salts for Maharashtra Board Class 9 Science: tap an answer to check it and see why.
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Quick Quiz: Acids, Bases and Salts
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According to Arrhenius theory, which ion do acids produce when dissolved in water?
What is the pH of a neutral solution at 25°C?
The reaction between an acid and a base to form salt and water is called:
What is the basicity of H2SO4?
Sample Questions
Which of the following are strong acids?
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HCl, H2SO4, HNO3
HCl, H2SO4, and HNO3 are strong acids as they dissociate almost completely in water. CH3COOH and H2CO3 are weak acids.
Blue litmus paper turns red in acidic solution.
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True
Blue litmus paper turns red in acidic solutions and remains blue in basic solutions. This is a simple test to identify acids.
Which gas is produced when metals react with acids?
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Hydrogen
When metals react with acids, hydrogen gas is produced. For example: Zn + 2HCl → ZnCl2 + H2.
Which of the following are basic in nature?
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Metal oxides, NaOH, Ca(OH)2
Metal oxides, NaOH, and Ca(OH)2 are basic in nature. Non-metal oxides like CO2 are acidic in nature.
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