An ore on treatment with dilute hydrochloric acid produces brisk effervescence. name the type of ore with one example. what steps will be required to obtain metal from the enriched ore? also write the chemical equations for the reactions involved in the process.

Sequence the following steps involved generally in the extraction of a metal in pure form from its ore, the extraction of a metal in pure form from its ore. (1) The metal obtained from its oxide requires further purification for end use. (2) The ore shoud be converted to its oxide form. (3) The ore is beneficial to us if it is hand-picked then metal crushed and ground, and later subjected to Pulverisation as per the requirement. (4) The ore in the form of oxide is required to be reduced. (5) Dressed ore is required for it to be concentrated.

Q. Identify the salts P and Q from the observations given below: When dilute H C l is added to a salt Q, a brisk effervescence is produced and the gas turns lime water milky. When N H 4 O H solution is added to the above mixture (after adding dilute H C l), it produces a white precipitate which is soluble in excess N H 4 O H solution.