If you are searching for Chapter 18 MCQs, you are at the right portal. Many students appear in MDCAT every year, and few pass the test with good scores. The students must prepare well for the entry tests to perform well. The students can access the MCQs from this page that help the students during the preparatory phase of the entry test.
MDCAT Chemistry Ch 18 Test
The students can take the online test before appearing in the MDCAT entry test. The students can learn about their weak and strong preparation areas by taking the mock test. The students can also learn about time management, which will ultimately help them in the entry test. Try to spend maximum time solving the online MCQs after the completion of the preparation. The online test for other subjects is also available for the students.
a) Describe the structure of aldehyde and ketones.
b) Discuss preparation of aldehydes and ketones by oxidation of alcohols.
c) Discuss following reactions of aldehydes and ketones:
i) Common to both; 2,4-DNPH to detect the presence of carbonyl group HCN to show mechanism of nucleophilic addition reaction Reduction with NaBH4 or LiAlH4 ii) Reactions in which Aldehydes differs from ketones i.e. Oxidation with Tollen’s reagent and Fehling’s solution. iii) Reaction which show presence of CH3CO– group in aldehydes and ketones Triiodomethane test (Iodo form test) using alkaline aqueous iodine.
