A yellow precipitate is obtained when

Important Questions on Qualitative Analysis

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 9

Which of the following ions can be separated by using ${\mathrm{NH}}_4\mathrm{Cl}$ and ${\mathrm{NH}}_4\mathrm{OH}$

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 10

Which of the following cations cannot be separated by adding ${\mathrm{NH}}_4\mathrm{Cl}, {\mathrm{NH}}_4\mathrm{OH}$ and ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{CO}}_3$ to their solution?

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 11

On being heated, which of the following substances will give a gas that turns limewater milky?

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 13

On being strongly heated, which of the following substances will leave a black residue?

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 14

Which of the following cations will turn a borax bead green in an oxidising flame?

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 15

Which of the following statement(s) is(are) true

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 16

$\mathrm{KBr}+{\mathrm{MnO}}_2+{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{conc}.\right)\to {\mathrm{K}}_2{\mathrm{SO}}_4+{\mathrm{MnSO}}_4+{\mathrm{H}}_2\mathrm{O}+\left[\mathrm{X}\right]$ (unbalanced equation)

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 17

Of the following oxides, all are soluble in $\mathrm{NaOH}\left(\mathrm{aq}\right)$ except