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प्रश्न
State the inference drawn from the following observation :
On carrying out the flame test with a salt P a brick red flame was obtained. What is the cation in P?
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उत्तर
The cation P is Ca2+.
संबंधित प्रश्न
Define normal salt.
Define a mixed salt.
Give two examples of a mixed salt.
Identify the odd one out and justify.
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
From the formula listed below, choose one, in the following case, corresponding to the salt having the given description:
AgCl, CuCO3, CuSO4.5H2O, KNO3, NaCl, NaHSO4, Pb(NO3)2, ZnCO3, ZnSO4.7H2O.
An acid salt.
Ca(H2PO4)2 is an example of a compound called _______ .
Why is toothpaste basic?
The acid which does not form acid salt by a basic radical.
From the formula listed below, choose one, in the following case, corresponding to the salt having the given description:
AgCl, CuCO3, CuSO4.5H2O, KNO3, NaCl, NaHSO4, Pb(NO3)2, ZnCO3, ZnSO4.7H2O.
On treating with concentrated sulphuric acid, this salt changes from blue to white.
