Question

(i) On dilution of an acid, concentration of Hion
(a)Increases
(b)Decreases
(c)remains constant
(d)Becomes zero.

(ii) The acid present in vinegar solution is
(a)formic acid
(b)Lactic acid
(c)citric acid
(d)Acetic acid

(iii) Which one of the following can be used as an acid base indicator by visually impaired
students?
(a)litmus
(b)turmeric
(c)vanilla essence
(d)pH

(iv) The pH of gastric juice released during digestion is
(a)<7
(b)>7
(c)=7
(d)=0

(v) The main constituent of antacid is
(a)sodium carbonate (b) sodium bicarbonat
(c) calcium carbonate (d) none of these​

Answer 1

Answer:

i - b

ii - d

iii - c

iv - a

v - b

Explanation:

.