Question
| 1.Hydraulic press | a) Archimedes |
| 2.Cartesian Diver | b) Floatation |
| 3. Hydrostatic Balance | c) Pascal’s law |
| 4. Hydrometer | d) Buoyancy |
| 1.Hydraulic press | a) Archimedes |
| 2.Cartesian Diver | b) Floatation |
| 3. Hydrostatic Balance | c) Pascal’s law |
| 4. Hydrometer | d) Buoyancy |
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| 1) Hydrochloric acid | a) Fertilizer |
| 2) Citric acid | b) Baking powder |
| 3) Nitric acid | c) Car batteries |
| 4) Oxalic acid | d) Cleansing agent in toilets |
| 5) Sulphuric acid | e) Removing black stains |
| f) Effervescent salts |
| Name of the Drug | Purpose | Example |
| 1. Antipyretics | Kills the microorganism | Chloroform |
| 2. Anaesthetics | Pain reliever | Novalgin |
| 3. Antiseptics | Reduction of fever | paracetamol |
| 4. Analgesics | Cure for malaria | Quinine |
| 5. Antimalarial | Loss of sensation | Hydrogen peroxide |
| Wave | a) Unwanted sound |
| 2. Sound | b) Successive reflections |
| 3. Noise | c) Movement of disturbance |
| 4. Thunder | d) Mechanical wave |
| Microorganism | Role Played |
| Nitrosomonas | Nitrogen fixation |
| Azotobacter | Ammonification |
| Pseudomonas species | Nitrification |
| Putrefying bacteria | Denitrification |
| 1. Rhizobium | a) Phosphorus |
| 2. Azotobacter | b) Soil bacterium |
| 3. Mycorrhizae | c) Anabaena |
| 4. Azolla | d) Antifungal compounds |
| Column A | Column B |
| 1. Specific heat capacity of water | a) 0°C |
| 2. Latent heat of fusion of ice | b) 2260 J/g |
| 3. Latent heat of vaporisation of water | c) 100°C |
| 4. Melting point of ice | d) 4.2 J/g°C |
| 5. Boiling point of water | e) 336 J/g |
| S.No. | Position of object | Position of image | Size and nature of image |
| 1 | Within focus | a) Between F and C | A) Magnified, Real, inverted |
| 2 | At focus F | b) At C | B) Magnified, virtual, erect |
| 3 | Between F and C | c) Behind the mirror | C) Diminished, Real, inverted |
| 4 | At C | d) Infinity | D) Highly Diminished, Real, inverted |
| 5 | Beyond C | e) At F | E) Highly Magnified, Real, inverted |
| 6 | At infinity | f) Beyond C | F) Same size, Real, inverted |
| 1) Hardest substance in our body | a) Aluminium phosphate |
| 2) Citrus fruits | b) Potash alum |
| 3) Rice plant | c) Insoluble in water |
| 4) Double salts | d) Acidic soil |
| 5) Silver chloride | e) Calcium phophate |
| f) Alkaline soil |

