Question
| 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 |
| 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 |
| Column ‘A’ | Column ‘B’ |
| 1. Class A fire | e. Solid substances |
| 2. Class B fire | d. Liquid substances |
| 3. Class C fire | b. Gaseous substances |
| 4. Class D fire | c. Chemical substances |
| 5. Class E fire | a. Electrical components |
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| Column ‘A’ | Column ‘B’ |
| 1. Strong acid | a. Magnesium hydroxide |
| 2. Weak alkali | b. Carbonic acid |
| 3. Weak acid | c. NaOH |
| 4. Strong alkali | d. Nitric acid |
| Microbes | Size |
| 1. Virus | (a) 1 μm to 10 μm |
| 2. Algae | (b) 200 μm |
| 3. Protozoa | (c) 10 μm to 100μm |
| 4. Bacteria | (d) 10 nm to 100 nm |
| Column I | Column II |
| 1. Proton | a. Negatively charged |
| 2. Electron | b. Neutral |
| 3. Neutron | c. Positively charged |
| 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 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 |
| S. No. | A | S. No. | B |
| (i) | Kharif crops | (a) | Food for cattle |
| (ii) | Rabi crops | (b) | Urea and superphosphate |
| (iii) | Chemical fertilisers | (c) | Animal excreta, cow-dung, and plant waste |
| (iv) | Organic manure | (d) | Wheat, gram, pea |
| (e) | Paddy and maize |
| 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 ‘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 |
| 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 |
| Group A | Group B |
| 1. Tamarind | a. Acetic acid |
| 2. Curd | b. Citric acid |
| 3. Lemon | c. Tartaric acid |
| 4. Vinegar | d. Lactic acid |