ICSE − Q & A

A non metallic chloride which on heating leaves no residue

Does anyone have conceptual questions on 1 and 2 nd chap link

+ 2 more questions by snehilms  

Number of atoms in 10 l of ammonia
asked by Snehilsk (snehilms) 9 years ago
2

The volume occupied by 3.5 g of O2 gas at 27°C and 740 mm press.O=16
asked by Snehilsk (snehilms) 9 years ago
3

in organic chem,,,only lab preparations will come???getting confused??

observation of reaction of barium with hcl or h2so4????

Guys if you get confused btw cations and anions remember : CATions are PAWsitive. Get it !! xD

BTW.Is it true that you won't get marks if u miss the QN no....??!😯

Anyone else scared the shit out of?

+ 1 more questions by agrek  

Period 2 learning method on non metal side: BC(bhench.......) NO(no) F NE(Fine) As in BC not fine Period 3: Al Si(Lazy in hindi) P S( As in letters) Ch Ar(Chlarity as in clarity)
asked by Abhishek Agrawal (agrek) 9 years ago
2

BEST TECHNIQUE OF LEARN INSOLUBLE SALTS.....







IN CAR SHOP---insoluble  carbonates  sulphite,sulphide   hydroxides  oxides phosphates.





INSOLUBLE SULPHATES-

BARRY AGAIN CALLED PLUMBER. - BArium  SILVER(Ag)  CALCIUM LEAD(Pb)

Pure iron fillins weighing 11.6g are placed in a soln. containing 63.8g of copper sulphate solution .sufficient timeis provided for the reaction to complete. calculate the mass of copper deposited.
.
..
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Fe+CuSO4------------>FeSO4+Cu
[Cu=64,Fe=56,s=32,O=16] 
in this question if we solve using iron we get different and using copper sulphate we get a different answer so how should we do this..................................

which ores are concentrated by hydrolytic separation??