Question
| Column 1 | Column II |
| 1. Milk | a. Alloy |
| 2. Lemonade | b. Colloid |
| 3. Sand and water | c. Solution |
| 4. Brass | d. Suspension |
| Column 1 | Column II |
| 1. Milk | a. Alloy |
| 2. Lemonade | b. Colloid |
| 3. Sand and water | c. Solution |
| 4. Brass | d. Suspension |
| Column 1 | Column II |
| 1. Milk | b. Colloid |
| 2. Lemonade | c. Solution |
| 3. Sand and water | d. Suspension |
| 4. Brass | a. Alloy |
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| Column A | Column B |
| 1. Borosilicate glass | a. Oxide of specific metal. |
| 2. Alkali silicate glass | b. Sand, soda, limestone, barium oxide and boron. |
| 3. Lead glass | c. Sand and soda. |
| 4. Optical glass | d. Sand, soda, limestone and lead oxide. |
| 5. Coloured glass | e. Sand, soda, boric acid and aluminium oxide. |
| Column ‘A’ | Column ‘B’ |
| 1. < 8 MSun | a. Proton star |
| 2. between 8 and 25 times MSun | b. Black hole |
| 3. > 25 MSun | c. Neutron star |
| d. White dwarf |
| Bacterial diseases | Bacteria |
| 1. Typhoid | (a) Mycobacterium tuberculi |
| 2. Cholera | (b) Bacillus |
| 3. Diarrhoea | (c) Vibrio choleri |
| 4. Tuberculosis | (d) Salmonella typhi |
| Column ‘A’ | Column ‘B’ |
| 1. Lead glass | a. Plates |
| 2. Bakelite | b. Mattresses |
| 3. Thermocol | c. Electric bulb |
| 4. Optic glass | d. Electric switch |
| 5. Polypropylene | e. Lens |
| Column ‘A’ | Column ‘B’ |
| 1. The Great Himalayan National Park | a. Asiatic lion |
| 2. Kaziranga | b. Tigers |
| 3. Bharatpur | c. Aquatic birds |
| 4. Ranthambore | d. One-horned Rhino |
| 5. Gir forest | e. White panther |
| Column I | Column II |
| 1. Thomson | a. Well defined orbits |
| 2. Rutherford | b. Neutron |
| 3. Chadwick | c. Scattering experiment |
| 4. Bohr | d. Electron |
| Column I | Column II |
| 1. Photosynthesis | a. Tendency to lose electrons |
| 2. Water | b. Reactant in combustion process |
| 3. Sodium chloride | c. Chemical change |
| 4. Dissolution of salt in water | d. Covalent bond |
| 5. Carbon | e. Ionic bond |
| 6. Fluorine | f. Physical change |
| 7. Magnesium | g. Tendency to form anion |
| Column 1 | Column 2 | Column 3 |
| 1. Pressure | Mass/volume | Specific gravity |
| 2. Density | Force/area | Decreases with increase in height above the sea level |
| 3. Atmospheric pressure | No unit | Useful to determine the purity of a substance |
| 4. Relative density | The pascal | Decreases with increase in area |
| Column ‘A’ | Column ‘B’ |
| 1. Water containing cobalt | a. Mental retardation |
| 2. Methane gas | b. Paralysis |
| 3. Water containing lead | c. Inflammation of lungs |
| 4. Sulphur dioxide | d. Skin cancer |
| 5. Nitrogen dioxide | e. Irritation of eyes |
| Column A | Column B |
| 1. Silver | a. Copper + tin |
| 2. Mercury | b. Medicines |
| 3. Platinum | c. Thermometer |
| 4. Brass | d. Catalyst |