Question
| 1. | Anode | (a) | Conducting solution |
| 2. | Cathode | (b) | Positive terminal |
| 3. | Ions | (c) | Negative terminal |
| 4. | Electrolyte | (d) | Positively or negatively charged |
| 1. | Anode | (a) | Conducting solution |
| 2. | Cathode | (b) | Positive terminal |
| 3. | Ions | (c) | Negative terminal |
| 4. | Electrolyte | (d) | Positively or negatively charged |
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| 1. | Oxygen | (a) | Carbon dioxide |
| 2. | Azote | (b) | Nitrogen |
| 3. | Solvay process | (c) | Vital life |
| 4. | Gun powder | (d) | No life |
| 1. | Insulator | (a) | Coulomb |
| 2. | Conductor | (b) | Electric circuit |
| 3. | Closed path | (c) | Copper |
| 4. | Electric charge | (d) | Rubber |

| 1. | Calcium | (a) | Salt |
| 2. | Iron | (b) | Fruits |
| 3. | Iodine | (c) | Jaggery |
| 4. | Minerals | (d) | Pulses |
| 5. | Protein | (e) | Milk |
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
| i | Pyricularia | (a) | Mosses |
| ii | Cercospora | (b) | Blast disease |
| iii | Protonema | (c) | Tikka disease |
| iv | Dryopteris | (d) | Fem |
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
| Spoilage | Decomposition |
| Ozone | Biocatalyst |
| Tarnishing | Oxygen |
| Yeast | Chemical reaction |
| Calcium oxide | Food |
| 1. | Solid to liquid | (a) | Condensation |
| 2. | Liquid to gas | (b) | Deposition |
| 3. | Gas to solid | (c) | Melting |
| 4. | Gas to liquid | (d) | Vaporization |