Chemistry
Fill in the blanks:
Hydrochloric acid can be converted into chlorine by heating with _________ [calcium oxide, lead (II) oxide, lead (IV) oxide] which acts as a/an _________ [oxidising, reducing] agent.
Related Questions
Fill in the blanks:
Addition of _________ [iron (III) sulphide, iron (II) sulphide, iron pyrites] to dilute hydrochloric acid results in liberation of hydrogen sulphide gas.
Fill in the blanks:
Aqua regia is a mixture of _________ [one, two, three] part/s of concentrated nitric acid and _________ [one, two, three] part/s of concentrated hydrochloric acid by _________ [weight, volume]. In aqua regia, nitric acid _________ [oxidises, reduces] hydrochloric acid to chlorine.
Give a reason why:
(a) gastric juices of mammals are acidic
(b) HCl is considered a polar covalent compound.
Give the equation for preparation of HCl gas by synthesis. State two conditions involved in the synthesis.