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Multiple Choice
Which of the following accurately describes a biochemical test used to identify microorganisms in organic chemistry?
A
Benedict's test for reducing sugars
B
Tollen's test for alkenes
C
Iodine test for proteins
D
Lucas test for alcohols
Verified step by step guidance
1
Understand the purpose of each biochemical test mentioned in the options. Each test is designed to identify specific functional groups or types of compounds.
Benedict's test is used to identify reducing sugars. It involves the reduction of copper(II) ions to copper(I) oxide, which forms a red precipitate if reducing sugars are present.
Tollen's test is used to identify aldehydes, not alkenes. It involves the reduction of silver ions to metallic silver, forming a silver mirror on the test tube if aldehydes are present.
The iodine test is used to identify starch, not proteins. It involves the formation of a blue-black complex when iodine interacts with starch molecules.
Lucas test is used to identify alcohols, specifically distinguishing between primary, secondary, and tertiary alcohols based on their reactivity with hydrochloric acid and zinc chloride.