Baking powder contains :
NaHCO3, Ca(H2PO2)2 and starch.
NaHCO3, Ca(H2PO2)2
NaHCO3 and starch.
NaHCO3
Estimation of calcium and magnesium is done by:
EDTA
oxalate
phosphate
none of these
A.
EDTA
Estimation of calcium and magnesium is done by EDTA.
Plaster of Paris on making paste with little water sets to hard mass due to formation of
CaSO4
CaSO4.1/2 H2O
CaSO4 H2O
CaSO4.2H2O
The chemical which is used for plastering the broken bones is
(CaSO4)2H2O
MgSO4·7H2O
FeSO4·7H2O
CuSO4·5H2O
Solution of sodium thiosulphate in photography works as
to shine film
to develop film
to dissolve silver bromide
to change negative into positive