Answer the following questions pertaining to the brown ring test for nitric acid :

Which of the two solutions - iron [II] sulphate of conc sulphuric acid, do X and Z represent.

Answer the following questions pertaining to the brown ring test for nitric acid : State why the unstable brown ring decomposes completely on disturbing the test tube .

Answer the following questions pertaining to the brown ring test for nitric acid : Give a reason why the brown ring does not settle down at the bottom of the rest tube.

Explain with the help of a balanced equation, the brown ring test for nitric acid.

Answer the following questions with respect to the solutions marked 'A' and 'B' having pH values 4 and 10 respectively. Which one of the two solutions will show acidic nature?

Write the balanced chemical equation for the following: Iron is reacted with conc. sulphuric acid.

The following question is related to Iron: Name the acid with which iron is rendered passive .

Answer the following questions in one word or one sentence: What is the nature of aqueous solution of ammonium chloride, acidic or basic?

A salt, when warmed with zinc powder and an NaOH solution, gives a gas that turns a filter paper soaked with an alkaline solution of K_(2)[HgI_(4)] brown. The salt responds to the brown ring test when acetic acid is used in place of sulphuric acid. The anion present in the salt is:

Which of the following statements regarding conc. Sulphuric acid is not correct?

Answer the following questions related to Ostwald's process : Chamber where nitrogen dioxide gets oxidised to nitric acid. ……………………………