What do you observe when
(a) Iron nail is kept in copper sulphate solution for sometime.
(b) Phenolphthalein is added to sodium hydroxidee solution.
(c) Blue litmus paper is dipped in dilute hydrochloric acid.
(d) Lead nitrate is heated.
(e) magnesium ribbon is burnt in oxygen.
(f)ammonia is brought in contact of hydrogen chloride gas.
State your observation for the following cases: (i) Moist blue litmus is introduced into a gas jar of sulphur dioxide. (ii) Dry red rose petals are placed in the jar of sulphur dioxide. (iii) Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.
What will you observe if Hydrogen chloride gas is passed through blue litmus solution?