Chemistry
From the list of the following salts — AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2. State the salt which on heating, evolves a brown coloured gas.
Related Questions
Identify the acid — The acid which is prepared by catalytic oxidation of ammonia.
Explain the following:
(i) Dil. HNO3 is generally considered a typical acid but not so in it's reaction with metals.
(ii) When it is left standing in a glass bottle, concentrated nitric acid appears yellow.
(iii) In the laboratory preparation of nitric acid, an all glass apparatus is used.
Write balanced chemical equation for: Action of hot and concentrated nitric acid on copper.
Fill in the blanks using the appropriate words given in the bracket below:
[sulphur dioxide, nitrogen dioxide, nitric oxide, sulphuric acid]
(i) Cold, dilute nitric acid reacts with copper to give ……………
(ii) Hot, concentrated nitric acid reacts with sulphur to form ……………