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Chemistry Chapter 10 : Test Yourself
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Which of the following cannot be classified as Arrhenius acid?
Reasoning: ● Arrhenius acids produce H⁺ ions in water.● CO₂ is not an acid itself, but forms carbonic acid in water, so it isnot directly an Arrhenius acid.
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Which of the following is a Bronsted base?
Reasoning: A Bronsted base is a proton (H⁺) acceptor. NH₃ accepts H⁺ to form NH₄⁺.
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Milk of magnesia contains Mg (OH)₂. It is used as antacid. It neutralizes excess stomach acid. Which salt is formed in this reaction?
Reasoning: ● Stomach acid is mainly HCl.Mg(OH)₂ + HCl → MgCl₂ + H₂O● So, the salt formed is magnesium chloride.
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Ammonia is a base, because it:
Reasoning: NH₃ acts as a Bronsted base by accepting H⁺ to form NH₄⁺.
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Consider the following reaction?H₂O+HCl ⇌ H₃O⁺+Cl⁻Which species is an electron proton acceptor in this reaction?
Reasoning: H₂O accepts H⁺ from HCl to form H₃O⁺, so it is the proton acceptor (base).
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