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1. The substance that can be used as a hypnotic: Barbituric acid 2. The ‘fixing agent’ used in photograhic film is: Sodium thiosulphate 3. The maximum concentration of ozone is found in the: Stratosphere 4. The Halogen which is used as an antiseptic: Iodine 5. The lightest noble gas: Helium 6. Cetane number is used to rate: Diesel 7. Plaster of Paris is prepared by heating: Gypsum 8. The heaviest of Alkaline earth metals: Radium 9. Which metal foil is used for packing chocolates, medicines, cigarettes etc? Aluminium 10. As per Avogadro’s hypothesis, equal volume of different gases at the same temperature and pressure contain equal number of: molecules 11. The element with the largest number of isotopes: Tin 12. Which property of copper and aluminium makes them suitable for making cooking utensils and boilers? High thermal conductivity 13. Silver objects turn dark on prolonged exposure to air due to the formation of: Silver sulphide 14. In which type of rocks petroleum is found? Sedimen...

1. The organism than can move according to the magnetic force of the earth: (a) Snake (b) Snail (c) Frog (d) Millipede 2. The organism that spreads Elephantiasis: (a) Culex mosquito (b) Anophelus mosquito(c) Rat flee (d) Plasmodium 3. Which organism has the largest eye: (a) Elephant (b) Giraffe (c) Rhino (d) Giant squid 4. Which organism identifies taste using its legs? (a) Spider (b) Butterfly (c) Frog (d) Cockroach 5. Which organism does not move itself? (a) Snail (b) Sloth (c) Sponge (d) Sea Urchin 6. Which is known as ‘painted lady’? (a) Spider (b) Butterfly (c) Python (d) Beetle 7. Which organism is known as ‘friend of the farmer’? (a) Rat (b) Earth worm (c) Cow (d) Dog 8. The organism that eats its mate: (a) Ant (b) Cockroach (c) Crab (d) Spider 9. The largest insect: (a) Cockroach (b) Rhinocerus Beetle (c) Bug (d) Goliath Beetle 10. The animal that has chlorophyll: (a) Raccoon (b) Euglina (c) Paramecium (d) Sea Urchin 11. The respiratory organ of earth worm: (a) Skin (b) Book lu...

1. Entomophily is the pollination through: (a) Birds (b) Animals (c) Insects (d) Wind 2. The tissues that provides support to growing shoots and leaves of plant body: (a) Parenchyma (b) Schlerenchyma (c) Collenchyma (d) Phloem 3. The tendency of plants to grow in response to the influence of chemicals: (a) Geotropism (b) Phototropism (c) Chemotropism (d) None of these 4. The pigment imparts purple/blue colour to flowers: (a) Xanthophyll (b) Anthocyanin (c) Betacyanin (d) Haemoglobin 5. Ornithophily is the pollination through: (a) Birds (b) Animals (c) Insects (d) Wind 6. Zoophily is the pollination through: (a) Insects (b) Wind (c) Animals (d) Birds 7. The hard parts of the plant body is made up of the tissues: (a) Collenchyma (b) Parenchyma (c) Schlerenchyma (d) Phloem 8. Japanese art of flower arrangement: (a) Origami (b) Ikebana (c) Harakiri (d) Sudoku 9. The food materials from leaf are carried to various parts of the plant body by: (a) Phloem (b) Xylem (c) Meristem (d) None of the...

1. Amyl acetate has the smell of: (a) Grapes (b) Orange (c) Pineapple (d) Banana 2. Which one of the following is not applicable to metals? (a) High Melting point (b) High Boiling point (c) High density (d) Low melting point 3. Volume of liquid is measured in: (a) Litre (b) Gram (c) Metre (d) Yard 4. The material used for the bomb dropped in Nagasaki: (a) Plutonium (b) Thorium (c) Uranium (d) None of these 5. Which human organ is first affected by nuclear radiation? (a) Brain (b) Liver (c) Heart (d) Kidney 6. Which metal contributes the largest portion of the mass of the earth? (a) Aluminium (b) Magnesium (c) Iron (d) Nickel 7. Which element has the smallest atom? (a) Hydrogen (b) Helium (c) Lithium (d) Boron 8. The mineral added to cement to adjust the duration of setting: (a) Epsom (b) Sodium (c) Lime (d) Gypsom 9. Which one of the following is not in crystalline form? (a) Table salt (b) Blue vitriol (c) Rubber (d) Sugar 10. The most abundant mineral in sea water: (a) Sodium (b) Magn...

1. ‘Round Revolution’ is related to the enhanced production of: Potato 2. Geonasty is the response of a plant to: Gravity 3. In which plant we can find Leghomoglobin? Soya bean 4. Presence of which mineral in Banana makes them slightly radio active? Potassium 5. Silviculture is related to: Forest development 6. The useful part of Grape: Pericarp 7. The useful part of Strawberry: Thalamus 8. Useful part of Coffee plant: Seed 9. Which kind of root is found in sugar cane? Stilt roots 10. Which revolution is related to meat and tomato production? Red revolution 11. The first Indian state where Green Revolution was started: Punjab 12. ‘Golden Fibre Revolution’ is related to: Jute 13. Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee. What is its popular name? Caffeine 14. ‘Menthol’ is obtained from: Peppermint 15. A seed dispersed with the help of hairs on it is: Cotton 16. Amflora is a genetically modified: Potato 17. Father of Indian Paleobotany: Birbal ...

Kerala PSC Regularly asking INVENTIONS AND DISCOVERIES. Oxygen - Priestly. Telegraph Code - Morse Dynamo - Faraday Gramaphone - Edison Sewing machine - Elias Howe Safety match - John Walker Sodium - Davy Safety pin - William HuntHeart Transplant Surgery - Christian Barnard Electrochemical cell - Volta Lightning Conductor - Benjamin Franklin Quantum theory - Max planck Theory of Relativity - Einstein Wireless - Marconi Aeroplane - Wright brothers Railway Engine - Stephenson Television - J L Baird Ball point pen - John J Loud Dynamite - Nobel Thermo metre - Fahren Heit Fountain Pen - Water mann Printing Press - Gutenberg Vaccination - Edward Jenner Laser - Charles H Townes Stethoscope - William stockes Circulation of Blood - William Harvey Laws of gravity - Newton Incandescent bulb - Edison Printing for the blind - Louis Braille Radium - Madame Curie Radio activity - Henry Becqurel Telephone - Graham Bell X-ray - Roentgen Diesel Engine - Rudolf Diesel Steam Engine - James Watt Telescope ...