1. | When an acid (H+) is added to alkali (OH-), product is |
a. | hydroxides |
b. | water |
c. | salts |
d. | hydrogen gas |
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Answer: (c).salts
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2. | K₂O + H₂O → |
a. | K(OH)₃ |
b. | KOH |
c. | KOH.H₂O |
d. | KO + H₂ + O₂ |
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Answer: (b).KOH
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3. | Mineral acids are |
a. | naturally occurring |
b. | man made |
c. | include malic acid |
d. | include formic acid |
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Answer: (a).naturally occurring
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4. | Excess acidity caused by acid rain can be neutralized by adding |
a. | more fertilizers |
b. | by removing the acidified soil |
c. | by adding P₂O₅ |
d. | by adding lime |
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Answer: (d).by adding lime
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5. | More corrosive acid is |
a. | H₂CO₃ |
b. | H₂SO₃ |
c. | HNO₃ |
d. | C₆H₈O₇ |
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Answer: (c).HNO₃
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