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151.

(P) Salt of `X + CaCI_(2)` (excess) `rarr Y +` Filtrate (Q) Filtrate `+NH_(3) rarr Y` (R) Filtrate + Boiling `rarr Y` Here, salt X is:A. mixture of `HCO_(3)^(-)` and `CO_(3)^(2-)`B. only `CO_(3)^(2-)`C. only `HCO_(3)^(-)`D. none of the above

Answer» Correct Answer - A
Discussion
152.

Statement-1: Initially there is no ppt.when `AgNO_(3)` is added to `Na_(2)SO_(2)` solution. Statement-2: Localised formation of `Ag_(2)SO_(3)` is destroyed by soluble complex formation like `[AgSO_(3)]^(-)`.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True, Statement-2- is True, Statement-2 is NOT a correct explanation for Statement-41C. Statement-1 is True, Statement-2 is FalseD. Statement-1 is False, Statement-2 is True

Answer» Correct Answer - A
Discussion
153.

The total number of reagents that are used to distinguish between sulphide and bisulphie acidic radical are: Litmus paper, `AgNO_(3),Pb(OAc)_(2),CaCI_(2),SrCI_(2),BaCI_(2),(K_(2)Cr_(2)O_(7)+H_(2)SO_(4)),(KMnO_(4)+H_(2)SO_(4))`

Answer» Correct Answer - 6
Litmus paper, `AgNO_(3),Pb(OAc)_(2),CaCI_(2),SrCI_(2),BaCI_(2)`
Discussion
154.

Which of the following compound(s) give yellow precipitate with `BaCI_(2)` solution?A. `Na_(2)Cr_(2)O_(7)+CH_(3)COONa`B. `K_(2)CrO_(4)+CH_(3)COOH`C. `Na_(2)HPO_(4)+NH_(3)`D. `Na_(2)S_(2)O_(3)`

Answer» Correct Answer - A::B
Discussion
155.

How many reagents are used to identify chromium after oxidation to chromate ion? `BaCI_(2)," "CaCI_(2),` (acidified `H_(2)O_(2)`-amyl alcohol), `AgNO_(3)`

Answer» Correct Answer - 3
`BaCI_(2)`, (acidified `H_(2)O_(2)`-amyl alcohol), `AgNO_(3)`
Discussion
156.

Which of the following reagent(s) make distinction of acetate from oxalates and formates?A. `BaCI_(2)`B. `CaCI_(2)`C. `HgCI_(2)`D. `FeCI_(3)`

Answer» Correct Answer - A::B::C
Discussion
157.

Which of the following anion(s) gives white ppt. with `CaCI_(2)` in aqueous solution?A. `CO_(3)^(2-)`B. `S^(2-)`C. `SO_(3)^(2-)`D. `CH_(3)COO^(-)`

Answer» Correct Answer - A::C
Discussion
158.

An aqueous solution of salt gives salt precipitate with `AgNO_(3)` solution as well as with dilute `H_(2)SO_(4)`. It may beA. `Pb(NO_(3))_(2)`B. `Ba(NO_(3))_(2)`C. `BaCI_(2)`D. `CuCI_(2)`

Answer» Correct Answer - C
Discussion
159.

The total number of reagents(s) which give white precipitate with solution of sodium oxalates. `(MnO_(2)+H_(2)SO_(4)),CaCI_(2),AgNO_(3),BaCI_(2),KMnO_(4),(K_(2)Cr_(2)O_(7)+H_(2)SO_(4))`

Answer» Correct Answer - 3
`CaCI_(2),AgNO_(3),BaCI_(2)`
Discussion
160.

Statement-1: Potassium chromate solution in acetic acid precipitates only `Ba^(2+)` as `BaCrO_(4)` in group Vth. Statement-2: `SrCrO_(4)` and `CaCrO_(4)` are not precipitated with potassium chromate solution in acetic acid.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True, Statement-2- is True, Statement-2 is NOT a correct explanation for Statement-34C. Statement-1 is True, Statement-2 is FalseD. Statement-1 is False, Statement-2 is True

Answer» Correct Answer - B
Discussion
161.

Statement-1: Barium bromide gives some colour. Precipitate with `AgNO_(3)` as well as with `K_(2)CrO_(4)`. Statement-2: Silver bromide is completely soluble in dilute solution of ammonia.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True, Statement-2- is True, Statement-2 is NOT a correct explanation for Statement-24C. Statement-1 is True, Statement-2 is FalseD. Statement-1 is False, Statement-2 is True

Answer» Correct Answer - C
Discussion
162.

Identify the salt (X) which when treated with `K_(2)CrO_(4)` in the presence of dil acetic acid a yellow ppt is obtained. Salt (X) produces green flame in the flame test:A. `BaCI_(2)`B. `SrCI_(2)`C. `PbCI_(2)`D. `AgNO_(3)`

Answer» Correct Answer - A
Discussion
163.

Statement-1 : In dilute solution of strontium ions, yellow precipitate of `SrCrO_(4)` is formed with `CrO_(4)^(2-)` ions. Statement-2 :The `SrCrO_(4)` precipitate is appreciably soluble in water, therefore, no precipitation occurs when water is taken in large quantity.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True, Statement-2- is True, Statement-2 is NOT a correct explanation for Statement-15C. Statement-1 is True, Statement-2 is FalseD. Statement-1 is False, Statement-2 is True

Answer» Correct Answer - A
Discussion