What is microcosmic salt?

  • A
    $Na_2HPO_4 \cdot 2H_2O$
  • B
    $(NH_4)_2HPO_4 \cdot 2H_2O$
  • C
    $Na(NH_4)HPO_4 \cdot 4H_2O$
  • D
    None of these

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Similar Questions

Which one of the following salts gives a green-coloured flame when the salt is tested by a $Pt$ wire?

Match List-$I$ with List-$II$ and choose the correct answer from the options given below:
List-$I$ (Name of the test)List-$II$ (Reaction sequence involved) [$M$ is metal]
$A$. Borax bead test$I$. $MCO_3$ $\rightarrow MO$ $\xrightarrow[+\Delta]{Co(NO_3)_2} CoO \cdot MO$
$B$. Charcoal cavity test$II$. $MCO_3$ $\rightarrow MCl_2$ $\rightarrow M^{2+}$
$C$. Cobalt nitrate test$III$. $MSO_4$ $\xrightarrow[\Delta]{Na_2B_4O_7} M(BO_2)_2$ $\rightarrow MBO_2$ $\rightarrow M$
$D$. Flame test$IV$. $MSO_4$ $\xrightarrow[\Delta]{Na_2CO_3} MCO_3$ $\rightarrow MO$ $\rightarrow M$

The compound called microcosmic salt is

Assign $A, B, C, D$ from the given type of reaction.
$Na_2CO_3 + KNO_3 \longrightarrow$ No reaction

Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$2KI + FeCl_2 \longrightarrow$ No reaction

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