The compound called microcosmic salt is
- A$Na_2HPO_4 \cdot 2H_2O$
- B$Na(NH_4)HPO_4 \cdot 4H_2O$
- C$Na_2NH_4PO_4 \cdot 2H_2O$
- D$(NH_4)_2HPO_4 \cdot 2H_2O$
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Similar Questions
Assign $A, B, C, D$ from the given type of reaction.
$MCrO_4 \downarrow (M^{2+} = Ba^{2+}, Pb^{2+}) + AcOH \longrightarrow$ No dissolution
$MCrO_4 \downarrow (M^{2+} = Ba^{2+}, Pb^{2+}) + AcOH \longrightarrow$ No dissolution
Medium
View SolutionMatch 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 $IV$. $MSO_4$ $\xrightarrow[\Delta]{Na_2CO_3} MCO_3$ $\rightarrow MO$ $\rightarrow M$
| 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 | $IV$. $MSO_4$ $\xrightarrow[\Delta]{Na_2CO_3} MCO_3$ $\rightarrow MO$ $\rightarrow M$ |
Identify the last step in wet chemical synthesis of nanomaterial.
Identify the type of precipitate formed in the following reaction: $(NH_4)_2SO_4 + Ba(OH)_2 \longrightarrow BaSO_4 \downarrow + 2NH_3 \uparrow$
Medium
View SolutionWhich of the following statement$(s)$ is (are) correct when a mixture of $NaCl$ and $K_{2}Cr_{2}O_{7}$ is gently warmed with conc. $H_{2}SO_{4}?$
MediumWBJEE 2016
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