(i) What per cent of 1 kg is 125 g ?(ii) What per cent of 80 m is 24 m?
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