(B) HCI
(C) Sn and HCI
(D) NaOH
8. With acetyl chloride or acetic anhydride, citric acid forms
(A) monoacetyl derivative
(B) diacetyl derivative
(C) polyacetyl derivative
(D) none of these
9. How many hydroxyl groups are present in diols
(A) One
(B) 'Two
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