Study of Acids, Bases and Salts — Important Questions
ICSE · Class 10 · Chemistry
44 important questions from Study of Acids, Bases and Salts for ICSE Class 10 Chemistry, with answers. Written for the board exams 2027.
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See them allImportant Questions from Study of Acids, Bases and Salts
Which of the following are properties of acids? (Select all correct answers)
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Sour taste, Turn blue litmus red, React with metals to produce hydrogen
Acids have sour taste, turn blue litmus red, and react with active metals to produce hydrogen gas. Bitter taste and turning red litmus blue are properties of bases.
Which type of salt is NaHSO4?
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Acid salt
NaHSO4 (sodium hydrogen sulphate) is an acid salt because it contains a replaceable hydrogen atom from the original acid H2SO4. It is formed by partial replacement of hydrogen atoms.
What happens when zinc reacts with dilute hydrochloric acid?
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Hydrogen gas is produced
When zinc reacts with dilute HCl, hydrogen gas is produced along with zinc chloride: Zn + 2HCl → ZnCl2 + H2↑. This is a characteristic reaction of acids with active metals.
Which of the following are examples of organic acids? (Select all correct answers)
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Acetic acid (CH3COOH), Formic acid (HCOOH), Citric acid
Organic acids contain carbon and are derived from living organisms. Acetic acid (vinegar), formic acid (bee sting), and citric acid (citrus fruits) are organic acids. HCl and H2SO4 are mineral acids.
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