Question

Q.29.
Match the columns:
Column 'A'
Answers
Column 'B'
Fluoride
(a) Man-made detergent
(ii) Soap nut
(b) Sodium salt of fatty acid
(c) Man-made material
(iii) Soap
(d) Prevents tooth decay
(iv) Cotton
(e) Potassium salt of fatty acid.
(v) Nylon
(f) Natural detergent
(vi) Hard soap
(g) Natural material
(vii) Calcium carbonate
(h) Main ingredients of toothpaste
(viii) Soft soap​

Answer 1

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