Question

16.
The mineral acid in the following is
1) HCI 2) CH,COOH
3) oxalic acid 4) formic acid
17.
The formula of caustic soda is
1) Na,CO,10H,0 2) NaCl
3) NaOH 4) NaHCO,
18.
The sour taste of lemons is due to
1) Formic acid
3) Acetic acid
2) Citric acid
4) None​

Answer 1

Explanation:

16 : HCL

17: Sodium hydroxide

18: Citric acid

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Answer 2

16.Mineral acid is HCl
17.NaOH
18.Citric acid