Q. No.Which compound among the following exhibits a higher melting point?
1. p-Nitro acetanilide
2. Acetanilide
3. Aniline
4. Acetone
1. p-Nitro acetanilide
2. Acetanilide
3. Aniline
4. Acetone
Subtopic: Preparation of the Organic and Inorganic compounds |
75%
Level 2: 60%+
Hints
Which of the following compounds is more likely to demonstrate analgesic properties?
1. p-Nitro acetanilide
2. Acetanilide
3. Sodium benzoate
4. None of the above
1. p-Nitro acetanilide
2. Acetanilide
3. Sodium benzoate
4. None of the above
Subtopic: Preparation of the Organic and Inorganic compounds |
52%
Level 3: 35%-60%
Hints
Subtopic: Preparation of the Organic and Inorganic compounds |
63%
Level 2: 60%+
Hints
Which of the following best describes the appearance of solid Mohr's salt?
1. Yellow powder
2. Green crystals
3. Blue granules
4. Colourless flakes
1. Yellow powder
2. Green crystals
3. Blue granules
4. Colourless flakes
Subtopic: Preparation of the Organic and Inorganic compounds |
60%
Level 2: 60%+
Hints
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%
Level 1: 80%+
Hints
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 |
50%
Level 3: 35%-60%
Hints
Which of the following is a chemical property of Mohr's salt?
| 1. | It effloresces in dry air |
| 2. | It decomposes upon heating to produce sulfur dioxide gas |
| 3. | It has a density of approximately 2.22 g/cm³ |
| 4. | It is soluble in nonpolar solvents like benzene |
Subtopic: Preparation of the Organic and Inorganic compounds |
63%
Level 2: 60%+
Hints
Mark the incorrect statement regarding Mohr's salt.
1. It is soluble in water.
2. It turns blue litmus paper red.
3. It turns red litmus paper blue.
4. It gives effervescence with sodium bicarbonate evolving carbon dioxide.
1. It is soluble in water.
2. It turns blue litmus paper red.
3. It turns red litmus paper blue.
4. It gives effervescence with sodium bicarbonate evolving carbon dioxide.
Subtopic: Preparation of the Organic and Inorganic compounds |
56%
Level 3: 35%-60%
Hints
Which of the following solutions will cause Mohr's salt to precipitate out as iron (II) hydroxide?
| 1. | Hydrochloric acid | 2. | Sodium hydroxide |
| 3. | Sulphuric acid | 4. | Potassium nitrate |
Subtopic: Preparation of the Organic and Inorganic compounds |
52%
Level 3: 35%-60%
Hints
Mohr's salt is primarily used as a/an:
1. reducing agent
2. oxidizing agent
3. complexometric indicator
4. pH indicator
1. reducing agent
2. oxidizing agent
3. complexometric indicator
4. pH indicator
Subtopic: Preparation of the Organic and Inorganic compounds |
51%
Level 3: 35%-60%
Hints
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