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A set of reagents (1 to 8) are successively reacted with the following compound

1. NaHCO3

2. 2, 4, DNP

3. Na metal

4. AgNO3 +OH

5. Fehling's solution

6. Cu2CI2 + NH4OH

7. Br2/H2O

8. NaNO2 + HCI

The reagents which give positive test with the given compound are :

(1) 1, 2, 3, 4, 5

(2) 3, 4, 5, 6, 8

(3) 1, 2, 3, 4, 8

(4) All reagents except 1 and 8