Q3 of 18 Page 90

What happens when an acid or base is mixed with water? (AS1)

When an acid or base is mixed with water, it results in the decrease of concentration of ions (H3O+/OH-) per unit volume. Such a process is called dilution and the acid or base is said to be diluted.


More from this chapter

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1

Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively, which solution is (AS1)

(a) neutral (b) strongly alkaline (c) strongly acidic (d) weakly acidic (e) weakly alkaline


Arrange the pH in increasing order of hydrogen ion concentration.

 2

What is a neutralization react ion? Give two examples. (AS1)

 4

Why does tooth decay start when the pH of mouth is lower than 5.5? (AS1)

 5

Why does not distilled water conduct electricity? (AS2)