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प्रश्न
State the inference drawn from the following observation:
A gas Q turns moist lead acetate paper silvery black. Identify the gas Q.
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उत्तर
The gas is H2S.
संबंधित प्रश्न
Define an acidic salt.
Name a chloride which is insoluble in cold water but dissolves in hot water.
Name a chloride which is insoluble.
Name an acidic salt.
Name a mixed salt.
From the formulae listed below, choose one in each case corresponding to the salt having the given description :
AgCI, CuCO3, CuSO4.5H2O, KNO3, NaCI, NaHSO4, Pb(NO3), ZnCO3, ZnSO4.7H2O
(a) An acid salt
(b) An insoluble chloride
(c) On treating with concentrated sulphuric acid, this salt changes from blue to white.
(d) On heating this salt changes from green to black.
(e) This salt gives nitrogen dioxide on heating
Select the correct answer from the choices a,b,c and d which are given.Write only the letter corresponding to the correct answer.
An example of a complex salt is
Ca(H2PO4)2 is an example of a compound called _______ .
What are basic salts? Give a suitable reaction for this.
The acid which does not form acid salt by a basic radical.
