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5. Therefore, if the farmer is advised to sprinkle quick lime in his crop field, the soil would have been acidic and thus have a low pH.
6. Acid rain water, if mixed with river water, lowers its pH below 5.6, i.e., makes river water acidic. ... That's why flow of acid rain water to river makes the survival of aquatic life in the river difficult.
7. Tooth enamel corrodes when it reacts with acid. When we eat chocolates or sweets, some part of the chocolate/sweet get stuck to the tooth. The small microorganisms present in our mouth decompose these chocolate/sweet by releasing mild acids. Thus tooth emamel undergo damage.
8. Bases turn red litmus paper blue. Acids give off H+ (Hydrogen) ions in water; bases give off OH- (Hydroxide) ions in water. Acids generally taste sour due to the sour H+ ion; bases taste bitter due to the OH- ion; but they may have other tastes depending on the other part of the molecule.
9.
10.A gas 'x' react with lime water and forms a compound Y which is used as a bleaching agent in the chemical industry. ... X= Chlorine gas react with lime water to form Calcium Oxychloride that is bleaching powder.
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