Important topic for admission / job examination:

 Important topic for admission / job examination:

What is 1 ripe banana? ➟ Emile Acetate 2) What is in ripe pineapple? Ethyl acetate 3) What is in ripe orange? Octyl acetate 4) Which acid is in tomato? Malic acid 5) Which acid is in lemon juice? Citric acid 6) Which acid is in apple? Malic acid 7) Which acid is present in tamarind? Tartaric acid 8) Amalki contains any acid? Oxalic acid 9) Which acid is in grapes? Tartaric acid 10) Which acid is in orange? Ascorbic acid 11) Which acid is present in milk? Lactic acid 12) Why does the throat itch when playing kachu? ➟ Because kachu contains calcium oxalate. 13) Whose idea is the size of the earth round? াসের Pythagoras 14) What is the full form of DDT? ➟ Di-chloro-di-phenyl-tri-chloro-ethane 15) What is the full form of TNT? Tri nitro toluene 16) What is the chemical name of soap? Sodium stearate 17) What is the chemical name of testing salt? Sodium monoglutamate 18) What is another name for petrol? Gasoline 19) Which acid is in vinegar? Acetic acid 20) What is the radius of the earth? ➟ 6434 km 21) How old is the earth? Approximately 4.5 billion years. 22) What is laughing gas? ➟ Nitrous oxide is called laughing gas. It's hilarious. 23) What is the wool of the philosopher? ➟ Zinc oxide is known as philosopher's wool. 24) Which metal is present in snake venom? Zinc 25) When is the shortest day in the Northern Hemisphere? 22 December 26) Which is the only non-metal that acts as an antidote? Carbon 27) What is the gold of the fool? Iron de sulfide 28) What is the most active metal? Potassium 29) Which is sweet in taste but not carbohydrate? Glycerin 30) Which scientist was the first to prepare organic compounds in a laboratory? German Scientist Uhlar 31) What is another name for pure sulfuric acid? Sulfan 32) What is the smell of urine? Ammonia 33) What is the number of cells in an adult human body? ➟ Six lakh crore to ten lakh crore 34) Where proteins are synthesized in cells? Protein is synthesized in ribosomes known as protein factory. 35) Which organism has the least number of chromosomes? ➟ One type of male ant and 1 female ant 36) Which plant has the most chromosomes? ৬ About 1270 fern plants 37) How many chromosomes do flies have? ➟ 12 38) How many chromosomes does a dog have? ৭৮ 6 39) How many chromosomes are there in cow and goat? 60 40) How many chromosomes are there in rice plant? ➟ 24 41) How many chromosomes does a frog have? 22 42) How many chromosomes are there in chicken? ৭৮ 6 43) How many chromosomes does a sheep have? 54 44) What is not in DNA? থাকে Does not contain uracil 45) What is the main function of RNA? তৈরী Protein making 46) What is not in RNA? Does not contain thiamine 47) What is the number of genes in human body? 40,000 48) What are the viral diseases? ➟ Measles, smallpox, polio, influenza, Hypertension, herpes, mumps, AIDS, hepatitis etc. 49) What are bacterial diseases? Cholera, typhoid, leprosy, tuberculosis, diphtheria, pneumonia etc. 50) What is a plant that grows in the desert? ➟ Xerofite 51) What controls the rate of photosynthesis of paddy plants in sunny rains? হতে To be the concentration of carbon dioxide 52) What causes a lizard's tail to fall off? ➟ The lizard's tail falls off when scared 53) What is the name of the most poisonous animal in the world? ➟ Sea Wasp or sea wasp is a kind of jelly fish 54) What is the meaning of the word amoeba? Always changeable 55) What is the meaning of the word protozoa? ➟ The first animal 56) No animal can make a sound? Giraffe 57) What is the indirect cause of pneumonia? Roundworm 58) Why do cat and dog eyes glow at night? কারণে Due to pigment cells called tapetomes. 59) What is the name of the screen of the brain? েন Meninges 60) What is the name of the screen of the heart? Pericardium 61) What is the name of the lung screen? ➟ Plura 62) What is the name of the liver membrane? Gleason's capsule 63) What is the name of the unstable screen? Perry Ostium 64) What is the name of the cartilage screen? Pericardium 65) What is the structural unit of nervous system? Neuron 66) What is the structural unit of excretory system? Nephron 67) What is the structural unit of skeletal system? Bones 68) What is the structural unit of liver? Hepatocytes 69) When is the longest day in the Northern Hemisphere? ➟ June 21 70) What is the structural unit of lung? Elviolai 71) What is the percentage of water in human body? 60% to 80% 72) Which controls the temperature in human body? Hypothalamus 73) Which juice digests both sugar and meat? Pancreatic juice 74) Which enzyme is present in human saliva? ➟ Tylenol 75) Which digestive juice prevents milk clotting in the stomach? ➟ Renin 76) HCL is secreted from which cell? Parietal cells 77) How many milk teeth? ➟ 20 78) What is the length of small intestine? ➟ 6 meters 79) What is responsible for the color of bile? Bilirubin 80) Where is bilirubin made? Spleen 81) What kind of lens exists in human eye? Ubottal 82) What is the number of nephrons in a kidney? ➟ About 10 lakhs 83) What is the total number of bones in the human body? ➟ 206 84) What is the universal blood donor group? ➟ O 85) Which group is the universal recipient of blood? ➟ AB 86) How much blood is in a human body? ৭ 6 percent of body weight 87) What is the disease of people due to lack of meat? Kwasiyarkar 88) Which vitamin deficiency causes scurvy? Vitamin C. 89) Which vitamin causes night blindness? Vitamin A. 90) Which vitamin deficiency causes beriberi? Vitamin B 91) Which vitamin deficiency causes rickets? Vitamin D 92) On what dates all over the world