Question
| Column-I | Column-II |
| A. Dow's process | 1. Salicylaldehyde |
| B. Schotten-Baumann reaction | 2. Phenol |
| C. Kolbe's reaction | 3. Phenyl benzoate |
| D. Reimer Tiemann Reaction | 4. Salicylic acid |
| Code. | A | B | C | D |
| (a) | 2 | 3 | 4 | 1 |
| (b) | 4 | 2 | 1 | 3 |
| (c) | 1 | 4 | 3 | 2 |
| (d) | 3 | 1 | 2 | 4 |
✓
Answer
2 3 4 1
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| Column-I | Column-II |
| A. Glycerol + dil. $HNO _3$ | 1. Meso oxalic acid |
| B. Glycerol + bismuth nitrate | 2. Oxalic acid |
| C. Glycerol + Fenton's reagent | 3. Glyceric acid + Tartronic acid |
| D. Glycerol + acidified $KMnO _4$ | 4. Glycerose |
| Code. | A | B | C | D |
| (a) | 3 | 1 | 4 | 2 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 4 | 3 | 2 | 1 |
| (d) | 2 | 4 | 1 | 3 |
(i) Oxide ore - (a) Zinc blende
(ii) Carbonate ore - (b) Horn silver
(Hi) Sulphide ore - (c) Haematite
(iv) Chloride ore - (d) Calamine
(ii) Carbonate ore - (b) Horn silver
(Hi) Sulphide ore - (c) Haematite
(iv) Chloride ore - (d) Calamine
(i) Haber's process - (a) $HNO _3$
(ii) Deacon's process - (b) Ammonia
(iii) Contact process - (c) Chlorine
(iv) Ostwald's process - (d) $H _2 SO _4$
→(ii) Deacon's process - (b) Ammonia
(iii) Contact process - (c) Chlorine
(iv) Ostwald's process - (d) $H _2 SO _4$
| Column I | Column II |
| A. Positive catalyst | 1. Glycerol |
| B. Negative Catalyst | 2. Molybdenum |
| C. Catalyst Poison | 3. $MnO _2$ |
| D. Promoter | 4. $H _2 S$ |
| Code: | A | B | C | D |
| (a) | 3 | 1 | 4 | 2 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 2 | 4 | 1 | 3 |
(i) Borax - (a) $Na _2 B _4 O _7$
(ii) Prismatic form - (b) $Na _2 B _4 O _7. 5 H _2 O$
(iii) Jeweller borax - (c) $Na _2 B _4 O _7. 10 H _2 O$
(iv) Borax glass - (d) $\left[ B _4 O _5( OH )_4\right]_2$
→(ii) Prismatic form - (b) $Na _2 B _4 O _7. 5 H _2 O$
(iii) Jeweller borax - (c) $Na _2 B _4 O _7. 10 H _2 O$
(iv) Borax glass - (d) $\left[ B _4 O _5( OH )_4\right]_2$
| Code. | A | B | C | D |
| (a) | 4 | 1 | 2 | 3 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 2 | 3 | 4 | 1 |
| (d) | 3 | 4 | 1 | 2 |
| Column-I | Column-II |
| A. $pH =8$ | 1. Soapy water |
| B. $pH =10$ | 2. Drain cleaner |
| C. $pH =12$ | 3. Sea water |
| D. $pH =14$ | 4. Indigestion tablet |
| Code. | A | B | C | D |
| (a) | 2 | 3 | 4 | 1 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 4 | 1 | 2 | 3 |
| (d) | 3 | 4 | 1 | 2 |
| A. Tungsten | 1. Development of human civilization |
| B. Titanium | 2. Light bulb filament |
| C. Molybdenum | 3. Artificial joint |
| D. Copper | 4. Boiler plants |
| (i) $Zn$-anode, Graphite-cathode with $MnO _2$ | (a) Lithium - ion battery reer |
| (ii) $Zn$ amalgamated with mercurry anode, sama $HgO$ mixed with graphite cathode | (b) Leclanche cell |
| (iii) Spongy lead anode, lead plate bearing $PbO _2$ | (c) Mercury button cell |
| (iv) Porous graphite anode, $CoO _2$ cathode | (d) Lead storage battery |
| Code: | A | B | C | D |
| $i$. | b | c | d | b |
| ii. | a | b | b | a |
| iii. | d | a | c | d |
| iv. | c | d | a | c |