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Subject - Chemistry:

Basics

MCQ - 43-2229

Question:

Which one of the following reagents will distinguish between benzaldehyde, C6H5CHO, and phenylethanone, C6H5COCH3?

  1. Aqueous bromine
  2. Aqueous diamminesilver (I) ions
  3. 2, 4-dinitrophenylhydrazine
  4. Aqueous diamminesilver (I) ions

Correct Answer: B

Explanation:

Almond essence is used to flavor foods. A student used 2, 4-dinitrophenylhydrazine reagent and obtained colored crystals which had a sharp melting point.

Record Performance

645 MCQ for effective preparation of the test of Basics of Chemistry section.

Read the MCQ statement: Which one of the following reagents will distinguish between benzaldehyde, C6H5CHO, and phenylethanone, C6H5COCH3? , keenly and apply the method you have learn through the video lessons for Basics to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 43-2229.

How to Answer

Solve the question for MCQ No. and decide which option (A through D/E) is the best choice to answer the MCQ, then click/tap the blue button to view the correct answer and it explanation.

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