Question
| 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 |
✓
Answer
3 1 4 2
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(i) Gold nanopaticle – (a)Cast iron
(ii) Cast iron – (b) Cooking vessels
(iii) Metallic zinc – (c) Solar cells
(iv) Aluminium – (d) Pump stoves
(ii) Cast iron – (b) Cooking vessels
(iii) Metallic zinc – (c) Solar cells
(iv) Aluminium – (d) Pump stoves
| List-I | List-II |
| A. $N _2 O ( g ) \leftrightharpoons N _2( g )+1 / 2 O _2( g )$ | 1. Order $=1$ |
| B. $SO _2 Cl _2( g ) \rightarrow SO _2( g )+ Cl _2( g )$ | 2. Order $=4$ |
| C. $CH _3 CHO ( g ) \rightarrow CH _4( g )+ CO ( g )$ | 3. Order $=0$ |
| D. $5 Br ^{-}{ }_{( aq )}+ BrO _3^{-}{ }_{( aq )}+6 H ^{+} \rightarrow 3 Br _{2 \text { (l) }}+3 H _2 O _{( l )}$ | 4. Order $=3 / 2$ |
| Code | A | B | C | D |
| (a) | 3 | 1 | 4 | 2 |
| (b) | 4 | 2 | 1 | 1 |
| (c) | 2 | 4 | 3 | 3 |
| (d) | 1 | 3 | 2 | 4 |
| Column I | Column II |
| A Physical adsorption | 1. Sorption of gases on metal surface |
| B Chemical adsorption | 2. Simultaneous adsorption and absorption |
| C Sorption | 3. Transfer of electrons |
| D Occulsion | 4. Van der Waals force of attraction |
| 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) $Zn$-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 |
| Column I | Column II | |
| A. Gas mask | 1. demineralise water | |
| B. Permutit | 2. petroleum refining | |
| C. Ion exchange resins | 3. softening of hard water | |
| D. Silica gel | 4. Charcoal gas | |
| Code: | A | B | C | D |
| (a) | 4 | 3 | 1 | 2 |
| (b) | 3 | 4 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 2 | 1 | 4 | 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) $\left[ B _4 O _5( OH )_4\right]_2$
(i) Aluminium – (a) cosmetics
(ii) Zinc oxide – (b) gas pipelines
(iii) Iron – (c) making coins
(iv) Copper – (d) bicycle chains
(ii) Zinc oxide – (b) gas pipelines
(iii) Iron – (c) making coins
(iv) Copper – (d) bicycle chains
(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. Propan-2-ol | 1. Primary alcohol |
| B. 2-methyl -propan-2-ol | 2. Secondary alcohol |
| C. Butan-1-ol | 3. Aromatic alcohol |
| D. Phenyl methanol | 4. Tertiary alcohol |
| Code. | A | B | C | D |
| (a) | 2 | 4 | 1 | 3 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 4 | 3 | 2 | 1 |
| (d) | 3 | 1 | 4 | 2 |
(i) Tetragens – (a) Oxygen
(ii) Icosagens – (b) Carbon
(iii) Chalcogens – (c) Nitrogen
(iv) Pnictogens – (d) Boron
(ii) Icosagens – (b) Carbon
(iii) Chalcogens – (c) Nitrogen
(iv) Pnictogens – (d) Boron