आईडेंटिफाई 1.in रेडिकल इन द गिवन अननोन इनॉर्गेनिक साल्ट m1 बाय परफॉर्मिंग ड्राई एंड वेट टेस्ट
Answers
Explanation:
(a) Carbonate: On treating the solid carbonate, CO2 is given off in the cold with brisk effervescence.
(b) Sulphide: Sulphides when treated with dil. H2SO4 give H2S gas.
(c) Sulphite: On heating solid sulphite with dil.H2SO4, SO2 gas is evolved
(d) Nitrite: On treating solid nitrite with dil. H2SO4, nitric oxide (NO) gas is evolved which readly gives brown fumes of NO2 with the oxygen of the air.
2) Conc. H2SO4 Test
If no action takes place with dil. H2SO4, warm a pinch of the salt with conc. H2SO4 and identify the gas evolved.
Chemical Reactions Involved in Conc. H2SO4 Test
(a) Chlorides: Chloride salts react with conc. H2SO4 to evolve hydrogen chloride (HCl) gas.
(b) Bromides: Bromide salts react with conc. H2SO4 to evolve bromine gas.