- 1(current)
Q. No.Match the following:
| Column I Reaction |
Column II Product/colour |
||
| a. | \(\small{Na_2[Fe(CN)_5NO]+Na_2S \rightarrow}\) | (p) | Yellow ppt of \(\small{(NH_4)_3PO_4.12 MoO_3}\) |
| b. | \(\small{NaSCN + FeCl_3 \rightarrow}\) | (q) | Blue colour due to \(\small{Fe_4[{Fe(CN)}_6]_3}\) |
| c. | \(\small{Na_4[Fe(CN)_6]+Fe^{3+} \rightarrow}\) | (r) | Blood red colour due to \(\small{Fe(SCN)_3}\) |
| d. | \(\small{Na_3PO_4+(NH_4)_2MoO_4 \xrightarrow {HNO_3}}\) | (s) | Violet colour due to \(\small{Na_4[Fe(CN)_5NOS]}\) |
| 1. | (a) → (q), (b) → (r), (c) → (p), (d) → (s) |
| 2. | (a) → (s), (b) → (r), (c) → (q), (d) → (p) |
| 3. | (a) → (p), (b) → (q), (c) → (r), (d) → (s) |
| 4. | (a) → (r), (b) → (p), (c) → (s), (d) → (q) |
Subtopic: Purification of Organic Compounds |
90%
Level 1: 80%+
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Hints
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The distillation technique most suited for separating glycerol from spent-lye in the soap industry is :
1. Steam distillation
2. Distillation under reduced pressure
3. Fractional distillation
4. Differential extraction
Subtopic: Purification of Organic Compounds |
88%
Level 1: 80%+
JEE
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Hints
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The purification method of organic compound does not depend on :
1. Nature of compound
2. Shape of compound
3. Density of compound
4. Solubility of compound
1. Nature of compound
2. Shape of compound
3. Density of compound
4. Solubility of compound
Subtopic: Purification of Organic Compounds |
86%
Level 1: 80%+
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- 1(current)
Q. No.
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