Alkaline earth metal sulphides dissolve in solution form
MS + H_2O \rightarrow M(OH)_2 + M(SH)_2
Bro ans given is a
Then IDK, in JD Lee what I typed above is given so I would mark D.
@Supreeta_Sen @Sourav_Kumar @Soumyadeep
For 1 st ques .. fact is that
Sulphates of Ag Pb Ba and Sr are insoluble
Do you have list of all such facts?
@arush_kumar_singh @Viraam_Rao @Supreeta_Sen
Extension of last line
Thank you bro
Other group would precipitate as sulphide I guess @arush_kumar_singh
Yes Ba and Sr will ppt ..
But if we want to use only for grp 3 then can we use it ????
Option B should be present in the answer as oxidation state of Sulphur is different in sulphuric acid and free state and both of them combine together to give SO2 having one oxidation state so it should be a comproportionation reaction.
Option A should also be one of the answers.
Yup. But option B isn't given in answer.
I don't think there is any other condition for comproportionation reaction other than reactants containing a common element having different oxidation states which combine to give a compound having only one particular oxidation state on the product side.
Okay.i was thinking if that excess and heat would make any difference.
And bro does KI react with conc H3PO4? In the book it's given they don't react.
I haven't read any particular condition for heat or having reactant in excess.
I think KI reacts with H3PO4 since it is an non-oxidising acid.
It reacts to give HI and K3PO4.
Maybe reaction is slow in nature.