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Assertion : The -As=As- linkage present ...

Assertion : The `-As=As-` linkage present in arshphenamine ( a Salvarsan drug ) resembles the `-N=N-` linkage present in azo days .
Reason : The first antibacterial agent , prontosil resembles in structure to the compound salvarsan .

A

If both assertion and reason are true and reason is the correct explanation of assertion .

B

If both assertion and reason are true but reason is not the correct explanation of assertion .

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states that the `-As=As-` linkage present in arshphenamine (a Salvarsan drug) resembles the `-N=N-` linkage present in azo dyes. - **Understanding the Linkages**: - The `-As=As-` linkage involves arsenic atoms, while the `-N=N-` linkage involves nitrogen atoms. - Both linkages are similar in that they involve a double bond between two atoms, but they differ in the type of atoms involved (arsenic vs nitrogen). ### Step 2: Analyze the Reason The reason states that the first antibacterial agent, prontosil, resembles in structure to the compound salvarsan. - **Understanding Prontosil and Salvarsan**: - Prontosil is indeed one of the first antibacterial agents and is a sulfonamide. - Salvarsan (or arshphenamine) is an arsenic-based drug used to treat syphilis. - While both drugs are used for antibacterial purposes, their structures are different. Prontosil contains a sulfonamide group, while Salvarsan contains arsenic. ### Step 3: Conclusion - Both the assertion and the reason are correct statements. However, the reason does not correctly explain the assertion. The assertion talks about the structural similarity of the linkages, while the reason discusses the similarity of two different antibacterial agents, which is not directly related to the assertion. ### Final Answer - The assertion is correct, and the reason is also correct, but the reason is not the correct explanation for the assertion. Therefore, the correct option is **B**. ---
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