Give a balanced chemical reaaction for the following : a. Tin is heated with conc `HNO_3` b. `Pb_3

Write balanced chemical equations for the following processes : MnO_(2) is heated with conc. HCl.

Write balanced chemical equation for the following : (a) NaCl is heated with sulphuric acid in the presence of MnO_(2) (b) Iodine is treated with Conc. HNO_(3) .

P_2O_5 heated with conc. HNO_3 gives

Write the balanced equation for the following ractions. (i) SnO is treated with dilute HNO_(3) (ii) Tin is heated with excessof chlorine gas (iii) Lead sulphide is heated in air.

Which of the following is passive towards the conc. HNO_3 ?

Write balanced chemical equations for the following : (i) Sodium nitrite is produced by absorbing the oxides of nitrogen in aqueous solution of washing soda. (ii) Nitrogen is obtained in the reaction of aqueous ammonia with potassium permanganate. (iii) Elemental phosphorus reacts with conc. HNO_3 to give phosphoric acid.

Pb on reaction with conc. HNO_3 gives

Which of the following is not soluble in hot an conc. HNO_(3) ?

Which of the following is rendered passive by conc. HNO_(3) is