Question
| Code. | A | B | C | D |
| (a) | 1 | 2 | 3 | 4 |
| (b) | 2 | 4 | 1 | 3 |
| (c) | 4 | 3 | 2 | 1 |
| (d) | 3 | 1 | 4 | 2 |
✓
Answer
4 3 2 1
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| Column I | Column II |
| A. Haber's process | 1. Anhydrous $AlCl _3$ |
| B. Vanaspathi preparation | 2. $Pt$ (or) $V _2 O _5$ |
| C. Contact process | 3. $Fe / Mo$ |
| D. Freidel crafts reaction Samac | 4. Nickel |
| Code: | A | B | C | D |
| (a) | 1 | 2 | 3 | 4 |
| (b) | 3 | 4 | 2 | 1 |
| (c) | 4 | 3 | 1 | 2 |
| (d) | 2 | 1 | 4 | 3 |
| Column-I | Column-II |
| A. Orange juice | 1. $pH =11$ |
| B. Ammonia solution | 2. $pH =3$ |
| C. Baking soda | 3. $pH =4$ |
| D. Tomato | 4. $pH =9$ |
| Column I | Column II |
| A M.C. Brain | 1 Adsorption theory |
| B T. Graham | 2 Brownian movement |
| C Langmuir | 3 Sorption |
| D RobertBrown sam | 4 Occlusion |
| Code: | A | B | C | D |
| (a) | 1 | 2 | 3 | 4 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 3 | 4 | 1 | 2 |
| (d) | 2 | 1 | 4 | 3 |
(i) Boron – (a) Optical
(ii) Borax – (b) Neutron absorber
(iii) Boric acid – (c) Welding torches
(iv) Diborane – (d) Eye lotion
(ii) Borax – (b) Neutron absorber
(iii) Boric acid – (c) Welding torches
(iv) Diborane – (d) Eye lotion
| Column I | Column II |
| A. Liquid Aerosol | 1. Soda water |
| B. Solid Aerosol | 2. Fog |
| C. Foam | 3. Milk |
| D. Emulsion | 4. Smoke |
| Code: | A | B | C | D |
| (a) | 2 | 4 | 1 | 3 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 3 | 1 | 4 | 2 |
| (i) Li-ion battery | (a) Pacemakers |
| (ii) Mercury button cell | (b) Fuel cell |
| (iii) Lead storage battery | (c) Cell phone |
| (iv) $H _2- O _2$ cell | (d) Inverter |
| Code: | A | B | C | D |
| $i$. | a | b | c | d |
| ii. | d | c | b | a |
| iii. | b | d | a | c |
| iv. | c | a | d | b |
| Column-I | Column-II |
| A. $H _2 O + H _3 O ^{+}$ | 1. Lewis base |
| B. $CH _3 COOH + CH _3 COONa$ | 2. Conjugate acid base pair |
| C. $BF _3, AlCl _3$ | 3. Buffer mixture |
| D. $CN ^{-}, SO _4{ }^{2-}$ | 4. Lewis acids |
(i) Tin stone – (a) Magnetic separation process
(ii) Copper pyrite – (b) Leaching process
(Hi) Bauxite – (c) Froth floatation process
(iv) Chromite – (d) Hydraulic washing process
(ii) Copper pyrite – (b) Leaching process
(Hi) Bauxite – (c) Froth floatation process
(iv) Chromite – (d) Hydraulic washing process
| Column I | Column II |
| A. $Ni$ | 1. $4 NH _3+5 O _2 \rightarrow 4 NO +6 H _2 O$ |
| B. $Pt$ | 2. $C _6 H _6+ CH _3 COCl \rightarrow C _6 H _6 COCH _3+ HCl$ |
| C. Anhydrous $AlCl _3$ | 3. $2 SO _2+ O _2 \rightarrow 2 SO _3$ |
| D. $V _2 O _5$ | 4. $CH _2= CH _2 \rightarrow CH _3- CH _3$ |
| Code: | A | B | C | D |
| (a) | 4 | 1 | 2 | 3 |
| (b) | 3 | 4 | 1 | 2 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 2 | 3 | 4 | 1 |
(i) Graphene – (a) Honeycomb crystal
(ii) Diamond – (b) Aromatic character
(iii) Fullerene – (c) Lubricant
(iv) Graphite – (d) Very hard
(ii) Diamond – (b) Aromatic character
(iii) Fullerene – (c) Lubricant
(iv) Graphite – (d) Very hard