Question 22
The per cent that represents the unshaded region in the figure, is (a) 75 % (b) 50 % (c) 40 % (d) 60 %
how much percentage of fresh water is consumed in domestic supply a)70 per b)26 per c)1.1 per d)10 per cent
Vinegar is a solution of about :
(a) 5 to 8 per cent ethanoic acid in alcohol (b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water (d) 50 to 80 per cent ethanoic acid in alcohol