A colourless gas with a pungent smell is evolved when dil...
A colourless gas with a pungent smell is evolved when dilute hydrochloric acid is added to a sample of a salt. The gas evolved could turn
acidified K2Cr2O7 solution colourless
acidified KMnO4 solution colourless
Fe(NO3)2 solution green
Pb(NO3)2 paper black
Correct answer is B
If the potassium manganate(VII) solution is acidified with dilute sulfuric acid, the purple solution becomes colourless.
The oxidation number of sulphur in Fe2(SO4)3 is...
Find the number of neutrons in an atom represented by 4521X....
The salt that will form a precipitate soluble in excess ammonia solution is ...
When air is passed through alkaline pyrogallol and then lime water, the gases left are ...
In an electrolytic set-up to protect iron from corrosion, the iron is? ...
Which of the following molecules has a triple bond in its structure? ...