Class 12ChemistryPrinciples Related to Practical ChemistryMix Examples of Principles Related to Practical Chemistry
Difficult$CaCO_3$ (aqueous suspension) $\xrightarrow{AcOH}$ $\xrightarrow{Na_2C_2O_4 \text{ solution}}$
Which of the following observations is correct for the above experiment?
Which of the following observations is correct for the above experiment?
- A$CO_2$ is evolved
- BFinally a clear solution is obtained which is colourless
- CColour of the initial substance and final precipitate (if any) is the same
- D$1$ and $3$ both are correct
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Similar Questions
Match Column-$I$ and Column-$II$ with the correct relation:
Column-$I$ Column-$II$ $(i)$ Ammonium phosphomolybdate $(a)$ $(NH_4)_2MoO_4$ $(ii)$ Ammonium phosphate $(b)$ $Mg^{2+} + NH_4OH$ $(iii)$ Mixture of magnesia $(c)$ $H_3PO_4$ $(iv)$ Ammonium molybdate $(d)$ $(NH_4)_3PO_4$ $(v)$ Phosphoric acid $(e)$ $(NH_4)_3PO_4 \cdot 12MoO_3$
| Column-$I$ | Column-$II$ |
|---|---|
| $(i)$ Ammonium phosphomolybdate | $(a)$ $(NH_4)_2MoO_4$ |
| $(ii)$ Ammonium phosphate | $(b)$ $Mg^{2+} + NH_4OH$ |
| $(iii)$ Mixture of magnesia | $(c)$ $H_3PO_4$ |
| $(iv)$ Ammonium molybdate | $(d)$ $(NH_4)_3PO_4$ |
| $(v)$ Phosphoric acid | $(e)$ $(NH_4)_3PO_4 \cdot 12MoO_3$ |
Easy
View SolutionThe number of white coloured salts among the following is .................
$A$. $SrSO_4$ $B$. $Mg(NH_4)PO_4$ $C$. $BaCrO_4$ $D$. $Mn(OH)_2$ $E$. $PbSO_4$ $F$. $PbCrO_4$ $G$. $AgBr$ $H$. $PbI_2$ $I$. $CaC_2O_4$ $J$. $[Fe(OH)_2(CH_3COO)]$
$A$. $SrSO_4$ $B$. $Mg(NH_4)PO_4$ $C$. $BaCrO_4$ $D$. $Mn(OH)_2$ $E$. $PbSO_4$ $F$. $PbCrO_4$ $G$. $AgBr$ $H$. $PbI_2$ $I$. $CaC_2O_4$ $J$. $[Fe(OH)_2(CH_3COO)]$
DifficultJEE MAIN 2024
View SolutionAssign $A$,$B$,$C$,$D$ from the given type of reaction.
$BaCrO_4 \downarrow + CH_3COOH \text{ (Excess)} \longrightarrow \text{No reaction}$
$BaCrO_4 \downarrow + CH_3COOH \text{ (Excess)} \longrightarrow \text{No reaction}$
Medium
View SolutionWhich of the following chemicals may be used to identify three unlabelled beakers containing conc. $NaOH$, conc. $H_{2}SO_{4}$ and water?
Match List-$I$ with List-$II$.
List-$I$ (Complex) List-$II$ (Colour) $A$. $Mg(NH_4)PO_4$ $I$. Brown $B$. $K_3[Co(NO_2)_6]$ $II$. White $C$. $MnO(OH)_2$ $III$. Yellow $D$. $Fe_4[Fe(CN)_6]_3$ $IV$. Blue
Choose the correct answer from the options given below:
| List-$I$ (Complex) | List-$II$ (Colour) |
| $A$. $Mg(NH_4)PO_4$ | $I$. Brown |
| $B$. $K_3[Co(NO_2)_6]$ | $II$. White |
| $C$. $MnO(OH)_2$ | $III$. Yellow |
| $D$. $Fe_4[Fe(CN)_6]_3$ | $IV$. Blue |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2023
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