You have 5 test tubes each filled with a different pure compound. You also have

Question

You have 5 test tubes each filled with a different pure compound. You also have a lot of extra test tubes and any other reagents needed to identify each compound. One contains benzene, one contains benzaldehyde, one contains cyclohexene, one contains benzoic acid, and one contains benzyl alcohol. Use "simple chemical tests" to distinguish which test tube has which compound. You do not need to write all of the equators - just write the one that gives the positive result allowing you to know what is in the test tube. You will assign the test to each test tube. In other words, not all of you have the same substance in the same test tube but you must have the correct reactions to prove the identity. Test tube 1 contains _____ because Test tube 2 contains _____ because Test tube 3 contains _____ because Test tube 4 contains _____ because Test tube 5 contains _____ because Name Reactions - put the letter in the space on the left that gives the best description of the name reaction aldol Claisen Williamson ether synthesis Grignard a primary alkyl halide with an alkoxide reduction of asymmetrical double bonds oxidizes an aldehyde and produces silver metal base catalyzed ester hydrolysis

Explanation / Answer

1. Test tube 1 contains benzoic acid because it gives brisk effervescence with evolution of a gas with NaHCO3

2. Test tube 2 contains cyclohexen because it gives a positive test , decolrisation of KMnO4.

3. Test tube 3 contains benzyl alcohol as it gives red coloration with ceric ammonium nitrate.

4.Test tube 4 contains benzaldehyde as it give s an orange red precipitate with 2,4 dinitrophenyl hydrazine.

5. Test tube 5 contains benzene because it does not give any of the tests.

Q2)Aldol - oxidizes an aldehyde and produces lver metal

Claisen - base catalyzed ester hydrolysis

Williamson synthesis - a priamry alkyl halide with an alkoxide

Grignard - reduction of asymmetrical double bonds (like C=O)

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