Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 7

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On the addition of a solution containing ${CrO}_{4}^{2 -}$ ions to the solution of ${Ba}^{2 +}, {Sr}^{2 +}$ and ${Ca}^{2 +}$ ions, the precipitate obtained first will be of:

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Important Questions on Qualitative Analysis

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Beta Question Bank for Engineering: Chemistry>Chapter 22 - Qualitative Analysis>EXERCISE-2>Q 8

A yellow precipitate is obtained when

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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

{NH}_{4} Cl

and

{NH}_{4} 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

{NH}_{4} Cl, {NH}_{4} OH

and

{({NH}_{4})}_{2} {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

KBr + {MnO}_{2} + H_{2} {SO}_{4} (conc .) \to K_{2} {SO}_{4} + {MnSO}_{4} + H_{2} O + [X]

(unbalanced equation)