Question

Which among the following elements is not present in salvarsan?

• A. P
• B. O
• C. N
• D. As

Hint:

Salvarsan contains arsenic, nitrogen, and oxygen, but not phosphorus. It was a significant medicinal compound in the early 20th century for treating syphilis.

Answer 1

The Correct Option is A

Step 1: Understanding salvarsan.
Salvarsan, also known as arsphenamine, is an organoarsenic compound that contains arsenic (As), nitrogen (N), and oxygen (O) but not phosphorus (P). It was historically used as a treatment for syphilis.

Step 2: Analyzing the options.
(A) P: Correct — Phosphorus is not present in salvarsan.
(B) O: Oxygen is present in salvarsan.
(C) N: Nitrogen is present in salvarsan.
(D) As: Arsenic is a key component of salvarsan.

Step 3: Conclusion.
The element that is not present in salvarsan is (A) P (Phosphorus).