Question

Q is heated in a boiling tube, and a brown fume is seen around the mouth of the boiling . What is the inference??

Answer 1

We can infer that
Brown gas could be nitrogen dioxide and so, the substance heated contains nitrate anions.

Thanks.

Answer 2

hey!!.

here is iu r answer.

nitrogen dioxide is a brown color fume formed.the interface is known as. nitratte ions.

ok