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Q. No.The colour of the precipitate of AgCl formed on the mixing of NaCl with AgNO3 is:
1. White
2. Green
3. Pink
4. Orange
Subtopic: Detection of Anions |
91%
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NEET 2026 - Target Batch - Vital
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Which ion's presence is confirmed when the salt smells like vinegar
upon treatment with dilute sulfuric acid?
1. Acetate ion
2. Chloride ion
3. Sulfate ion
4. Nitrate ion
upon treatment with dilute sulfuric acid?
1. Acetate ion
2. Chloride ion
3. Sulfate ion
4. Nitrate ion
Subtopic: Detection of Anions |
88%
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What color does acetate turn when it reacts with a neutral ferric chloride solution?
| 1. | Blue | 2. | Yellow |
| 3. | Deep red | 4. | Green |
Subtopic: Detection of Anions |
54%
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Which gas gives dense white fumes when reacted with ammonium hydroxide?
| 1. | Oxygen gas | 2. | Hydrogen gas |
| 3. | HCl gas | 4. | Ammonia gas |
Subtopic: Detection of Anions |
80%
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What reagents are added to the test solution to detect phosphate ions?
| 1. | Concentrated \(\mathrm{H_2SO_4 }\) and ammonium molybdate solution |
| 2. | Concentrated \(\mathrm{HCl}\) and ammonium sulfate solution |
| 3. | Concentrated \(\mathrm{HNO_3}\) and ammonium molybdate solution |
| 4. | Concentrated \(\mathrm{H_3PO_4}\) and ammonium chloride solution |
Subtopic: Detection of Anions |
58%
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What color precipitate indicates the presence of phosphate ions in the test solution containing ammonium molybdate solution,conc. HNO3 and boil to the test solution containing phosphate ions?
| 1. | Blue | 2. | Canary yellow |
| 3. | Red | 4. | Green |
Subtopic: Detection of Anions |
86%
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What substance is introduced following dilute HCl in the procedure to verify
1. Distilled water
2. Carbon disulphide
3. Bromine water
4. Iodine crystals
the presence of halogens in the layer Test?
1. Distilled water
2. Carbon disulphide
3. Bromine water
4. Iodine crystals
Subtopic: Detection of Anions |
54%
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What colour indicates the presence of bromide ions in the layer's test?
| 1. | Orange | 2. | Violet |
| 3. | Blue | 4. | Green |
Subtopic: Detection of Anions |
69%
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During the borax bead test with \(\mathrm{CuSO}_4\), a blue-green colour of the bead is observed in oxidizing flame due to the formation of:
1. \(\mathrm{CuO}\)
2. \(\mathrm{Cu}\left(\mathrm{BO}_2\right)_2\)
3. \(\mathrm{Cu} \mathrm{~B02}\)
4. \(\mathrm{Cu}\)
1. \(\mathrm{CuO}\)
2. \(\mathrm{Cu}\left(\mathrm{BO}_2\right)_2\)
3. \(\mathrm{Cu} \mathrm{~B02}\)
4. \(\mathrm{Cu}\)
Subtopic: Preparation of the Organic and Inorganic compounds |
84%
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What chemical changes occur when Mohr's salt is strongly heated?
| 1. | It decomposes into ferric oxide and ammonia gas. |
| 2. | It sublimes directly into ferrous sulfate and ammonium sulfate. |
| 3. | It forms a complex with water molecules. |
| 4. | It undergoes a reversible reaction to form ferrous hydroxide and ammonium sulfide. |
Subtopic: Preparation of the Organic and Inorganic compounds |
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