Question
| Column ‘A’ | Column ‘B’ |
| 1. Sodium hydroxide | a. Whitewashing |
| 2. Magnesium hydroxide | b. Fertilizers |
| 3. Calcium hydroxide | c. Washing soap |
| 4. Ammonium hydroxide | d. Antacid |
| Column ‘A’ | Column ‘B’ |
| 1. Sodium hydroxide | a. Whitewashing |
| 2. Magnesium hydroxide | b. Fertilizers |
| 3. Calcium hydroxide | c. Washing soap |
| 4. Ammonium hydroxide | d. Antacid |
| Column ‘A’ | Column ‘B’ |
| 1. Sodium hydroxide | c. Washing soap |
| 2. Magnesium hydroxide | d. Antacid |
| 3. Calcium hydroxide | a. Whitewashing |
| 4. Ammonium hydroxide | b. Fertilizers |
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| 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 |
| Bacterial diseases | Bacteria |
| 1. Typhoid | (a) Mycobacterium tuberculi |
| 2. Cholera | (b) Bacillus |
| 3. Diarrhoea | (c) Vibrio choleri |
| 4. Tuberculosis | (d) Salmonella typhi |
| Group ‘A’ | Group ‘B’ |
| 1. Fluid | a. Higher pressure |
| 2. Blunt knife | b. Atmospheric pressure |
| 3. Sharp needle | c. Specific gravity |
| 4. Relative density | d. Lower pressure |
| 5. Hectopascal | e. Same pressure in all directions |
| Column I | Column II |
| 1. Sea water | a. Solid in solid |
| 2. Vinegar | b. Solid in liquid |
| 3. Air | c. Liquid in liquid |
| 4. Bronze | d. Gas in liquid |
| 5. Chlorinated water | e. Gas in gas |
| Column 1 | Column II |
| 1. Milk | a. Alloy |
| 2. Lemonade | b. Colloid |
| 3. Sand and water | c. Solution |
| 4. Brass | d. Suspension |
| Column I | Column II |
| 1. Respiration | a. Potassium and fluorine |
| 2. Acid + Base | b. Glucose and oxygen |
| 3. Photosynthesis | c. Carbon dioxide and water |
| 4. Ionic bond | d. Salt and water |
| Producer | Ecosystem |
| 1. Cactus | a. Forest |
| 2. Aquatic plants | b. Creek |
| 3. Mangroves | c. Aquatic |
| 4. Pine | d. Desert |
| Column ‘A’ | Column ‘B’ |
| 1. Nucleus | a. Pipelines of the cell |
| 2. Endoplasmic reticulum | b. Powerhouse of the cell |
| 3. Golgi complex | c. Suicidal bags |
| 4. Mitochondria | d. Packing department |
| 5. Lysosomes | e. Controlling centre |
| Column ‘A’ | Column ‘B’ |
| 1. Copper | a. Low melting point |
| 2. Sodium | b. Liquid |
| 3. Magnesium | c. High melting point |
| 4. Boron | d. Conduction of heat |
| e. 2, 8, 2 |
| Column ‘A’ | Column ‘B’ |
| 1. Class A fire | a. Electrical components |
| 2. Class B fire | b. Gaseous substances |
| 3. Class C fire | c. Chemical substances |
| 4. Class D fire | d. Liquid substances |
| 5. Class E fire | e. Solid substances |