Multiple choice

--------------------- is also known as an explosive yellow gas?

  1. Diazomethane

  2. 1,2-Dibromoethane

  3. Cinchocaine

  4. Dichloroacetic acid

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A Correct answer
Explanation

Diazomethane is the chemical compound CH2N2. It is one of the most common diazo compounds. In the pure form at room temperature, it is a famously explosive yellow gas. Diazomethane is always prepared as needed as a solution in ether and used as such.