Question
| 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 |
✓
Answer
2 3 4 1
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| (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 |
(i) $N _2 O -($ a) +5
(ii) $N _2 O _4-$ (b) +3
(iii) $N _2 O _5-$ (c) +1
(iv) $N _2 O _3-$ (d) +4
→(ii) $N _2 O _4-$ (b) +3
(iii) $N _2 O _5-$ (c) +1
(iv) $N _2 O _3-$ (d) +4
| 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 |
| 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) 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) $\left[ B _4 O _5( OH )_4\right]_2$
| Column-I | Column-II |
| A. $HClO _4$ | 1. Very weak base |
| B. $HNO _2$ | 2. Very weak acid |
| C. $OH ^{-}$ | 3. Weak acid |
| D. $ClO _4^{-}$ | 4. Strong acid |
| 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. $H _2 O + H _3 O ^{+}$ | 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) Nitrogen sesquoxide - (a) $H _2 N _2 O _2$
(ii) Nitrous oxide - (b) $H _4 N _2 O _4$
(iii) Hyponitrous acid - (c) $N _2 O$
(iv) Hydronitrous acid - (d) $N _2 O _3$
→(ii) Nitrous oxide - (b) $H _4 N _2 O _4$
(iii) Hyponitrous acid - (c) $N _2 O$
(iv) Hydronitrous acid - (d) $N _2 O _3$
| Column I | Column II |
| (i) Ohm's law | (a) $E _{\text {cell }}= E _{\text {cell }}^{\circ}-\frac{0.0591}{ A } \log \frac{[ C ]^1[ D ]^{ m }}{[ A ]^{ x }[ B ]^{ y }}$ (b) $m = ZIT$ |
| (ii) Kohlraush's law | (b) $m = ZIT$ |
| (iii) Nernst equation | (c) $V = IR$ |
| (iv) Faradays first law | (d) $\left(\Lambda_{ m }^{\circ}\right)_{ A _{ x } B _{ y }}= x \left(\lambda_{ m }^{\circ}\right)_{ A ^{ y }}+ y \left(\lambda_{ m }^{\circ}\right)_{ B ^{ x }-}$ |
| Code: | A | B | C | D |
| $i$. | c | d | a | b |
| ii. | a | b | c | d |
| iii. | d | c | b | a |
| iv. | b | a | d | c |