Chemistry
Grade-10
Easy
Question
Which of the following statements is correct about an aqueous solution of an acid and of a base?
(i) Higher the pH, stronger the acid
(ii) Higher the pH, weaker the acid
(in) Lower the pH, stronger the base
(iv) Lower the pH, weaker the base
- (i) and (iii)
- (ii) and (iii)
- (i) and (iv)
- (ii) and (iv)
Hint:
pH lower stronger acid and as we go towards pH 14 basicity increases.
The correct answer is: (ii) and (iv)
- pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
- Higher the pH, weaker the acid and lower the pH, weaker the base.
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