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1863. The gland which is both endocrine as well as exocrine – Pancreas 1864. Which glands are also known as Ductless Glands? – Endocrine 1865. Name the vitamins that are water soluble – B & C 1866. Name the vitamins that are – A, D, E & K 1867. Blood group was discovered by – Landsteiner 1868. Universal blood donor – O Negative 1869. Which is the universal receiver blood group – AB 1870. How many chambers are there in frog heart – 3 1871. How many chambers are there in Human heart – 4 1872. Why are leaves green in colour – Chlorophyll 1873. Why is blood red in colour - hemoglobin 1874. What is the Ph value of human blood? – 7.4 1875. The rarest blood group is – AB Negative 1876. The metal present in the haemoglobin is – Iron 1877. The metal present in the chlorophyll is – Magnesium 1878. The important sugar in honey is – Fructose

61. the most stable form of carbon is – Graphite 62. The mirrors used as rear-view mirrors in vehicles are - convex 63. The majority charge carriers in a p-type semiconductor are - holes 64. When pure water boils vigorously, the bubbles that rise to the surface are composed primarily of – water vapour 65. The principle use of hydrofluoric acid is – in etching glass 66. Radioactivity is measured by – GM Counter 67. The shortest day length that occurs in the Northern hemisphere is on – 22 December 68. Who among the following can attend the meetings of both Houses of Parliament while not being a member of either House? - The Attorney General of India 69. The proposition 'equal volumes of different gases contain equal numbers of molecules at the same temperature and pressure' is known as - Avogadro's hypothesis 70. Which one of the following waves is used for detecting forgery in currency notes? - Ultraviolet waves 71. The symbol of SI unit of inductance is H. It stands for – Henry 72. Electron emission from a metallic surface by application of light is known as - Photoelectric Emission 73. Malarial parasite is a - protozoa 74. It is difficult to kill viruses because they - spend a lot of time inside the host’s cells 75. One kilowatt hour is equal to - 36 × 105 joule 76. When sound waves are propagated through a medium, the physical quantity/quantities transmitted is/are - energy only 77. A person is unable to read a newspaper without his glasses. He is most probably suffering from – presbyopia 78. Which one of the following is not a contact force? - Gravitational force 79. Which of the following items is used in the household wirings to prevent accidental fire in case of short circuit? - Electric fuse 80. Who among the following invented the powerloom that revolutionized the cotton textile industry? - Edmund Cartwright 81. Subsidiary Alliance was a system devised by - Lord Wellesley 82. The genetic material of bacteria is found in – cytoplasm 83. A horse and a donkey can breed to produce mule which is an infertile animal. The infertility is because horse and donkey belong to different – species 84. A plant having yellow leaves with dead spots has the deficiency of – Magnesium 85. Fluoride toothpaste is sometimes recommended because fluoride - hardens the enamel of the tooth 86. Who among the following was the author of Neel Darpan, published in 1860? - Dinabandhu Mitra 87. Which one of the following organizations was started by Jyotirao Phule in 1873? - Satyashodhak Samaj 88. Although used earlier by French and German writers, the term ‘Industrial Revolution’ in English was first popularized by - Amold Toynbee 89. The property of electric current which is applicable in the fuse wire is - heating effect of current 90. The setting time of cement is lowered by adding - gypsum 91. Emulsion is known as a - colloidal solution of two liquids 92. If one mixes up ashes with animal fat, the substance received in the crude form is called – Soap 93. Who are Bhawana Kanth, Avani Chaturvedi and Mohana Singh? - Fighter pilots 94. Supreme Court of India was established on the recommendation of - Regulating act of 1773 95. Which of the following Government of India act is called the mini constitution of India? - Government of India Act 1935 96. The council of ministers is responsible to the - Lok Sabha 97. Who said that the preamble is the keynote to the constitution? - Earnest Barker 98. According to the Constitution of India, which of the following are fundamental for the governance of the country? - Directive Principles of State Policy 99. The Ninth Schedule to the Indian Constitution was added by - First Amendment 100. The concept of mixed economy envisages - co-existence of public and private sectors 101. The best way to describe the overall aim of Indian planning is - growth with justice 102. An air bubble in water will act like a - cancave lens 103. The clouds float in the atmosphere because of low – density 104. Cryogenic engines find applications in - rocket technology

🧫 LIST OF ACIDS & THEIR SOURCES Acetic acid : Vinegar Citric acid : Citrus fruits Oleic Acid : Olive Oil Hydrochloric Acid : Gastric juice Formic Acid : Bees&Ant Lactic Acid : Sour milk Maleic Acid : Apples&Grapes Uric Acid : Urin Stearic Acid : Fats Oxalic Acid : Tomatoes,Spinach

Most Asked & Expected Biology One Liners 👌👌👌 1. Which glands secrete growth hormone – Pituitary Gland 2. Who is cold blooded animal – Snake 3. A single piece of coiled DNA is known as – Chromosome 4. Which is the only snake that makes nest – Cobra 5. Which enzyme is found in human saliva – Ptyalin 6. Where is urea separated from the blood – Kidney 7. Delonix regia rafin is the scientific name of – Gulmohar 8. Amoeba belongs to the phylum – protozoa 9. Diabetes is caused by – low production of insulin 10. The process of producing energy in plants is known as – Photosynthesis 11. Spider belongs to the phylum – Arthropoda 12. What is the brain of the cell? - Nucleus 13. Who is the father of anatomy? - Aristotle 14. In which muscle we can find ‘intercalated disc’? - cardiac muscle 15. How many vertebrae are there in the human boby? - 33 16. Which bone is called ‘beauty bone’? - clavicle 17. Which is the longest bone in the human body? - Femur 18. What is the largest organ in the human body? - skin 19. What is the largest gland? - liver 20. How many chambers in the human heart? - 4 21. What is the average blood pressure of human being? - 120/80 mmHg 22. What is the weight of the brain? - 1.36 kg 23. You can also check out Which acid is secreted from stomach? - HCl 24. Who invented human blood grouping system? - Carl Landsteiner 25. What kind of blood is carried through artery? - oxygenated blood 26. What is the function of hemoglobin? - transport oxygen 27. Fatigue is caused because of formation and depositing of which among the following acids in Muscles? – Lactic Acid 28. The primary function of RNA is – Protein Synthesis 29. What are the main component of the chromosome – DNA and Proteins 30. Which is the largest known cell – Ostrich Eggs 31. Plant cell wall is made up of – Cellulose

*Previous Year Asked GK one Liners in SSC * 1. Which is an emergency hormone in humans? – Adrenaline 2. During the period of which Governor General / Viceroy was the Indian Civil Service introduced? – Cornwallis 3. The first Commercial Civilian Aircraft developed by India is – Saras 4. Webbed neck is a characteristic of - Turner's syndrome 5. The minimum age limit for the membership of the Vidhan Parishad is - 30 years 6. National Anthem of Bangladesh 'Amar Sonar Bangla' was written by - Rabindranath Tagore 7. The largest producer of Lac in India is – Jharkhand 8. The founder of Bachpan Bachao Andolan (Save Child Movement ) is - Kailash Satyarthi 9. The most abundant metal in the Earth's crust is - aluminium 10. Hepatitis affects which organ of the human body? – Liver 11. The Speaker of Lok Sabha addresses his letter of resignation to the - Deputy Speaker of Lok Sabha 12. Who presided over the first session of the Indian National Congress? - W.C. Banerjee 13. Which writer has called Akbar's Din-i-Ilahi as a monument of his folly, not of wisdom? - Vincent Smith 14. The purest form of water in nature is - Rain water 15. Which book is called the 'Bible of Socialism'? - Das Capital 16. Who is known as the 'Father of Green Revolution' in India? - Norman Borlaug 17. The oxygen liberated during photosynthesis comes from – Water 18. First national park of India that was established in 1936 was named as - Hailey National Park now it is known as Jim Corbett National Park, Uttarakhand 19. Who is the 1st Indian female amputee to climb Mount Everest? - Arunima Sinha 20. The minimum short-term natural hazard is - bolt of lightning 21. Sariska and Ranthambore are the reserves for – Tiger 22. The famous Dilwara temples of Mount Abu are a sacred pilgrimage place for the – Jains 23. The commonly used coolant in refrigerators is – Freon 24. The complete form of 'IC' in electronics is - Integrated circuit 25. Which constitutional Amendment Act, deals with the Elementary Education as a Fundamental Right? - 86th Amendment Act

Computer 🖥 Dose 🖥 World's first computer - the Analytical Engine developed by Charles Babbage ran on steam not electricity. 🖥 Ada Lovelace, was the world's first computer programmer. 🖥 The first mouse was made from wood by Douglas Engelbart in the 1960s. 🖥 IBM developed the first hard drive (2.52 GB capacity) and it weighed 250kg. It was also the size of a refrigerator. 🖥 Alan Turing is known as the father of computer science. 🖥 The first virus was called the Creeper and emerged in 1971. 🖥 The QWERTY keyboard was invented in 1867 to reduce the speed of typists. 🖥 The first Webcam was invented by students of Cambridge University to monitor their coffee maker. 🖥 A Russian scientist, Vladimir Lukyanov built a computer that ran on water in 1936. 🖥 The first domain name registered was on 15th March, 1985 and was symbolics.com. Credit __🖥 Amit Kumar 🖥

*IMPORTANT BIOLOGY QUESTIONS* 345. The unit of nervous system - Neuron 346. The neurons which carry impulses from receptor to brain - Sensory neurons 347. The neuron which transmits impulses from brain to the effector organ - Motor neurons 348. The lower part of brain which contains reflex centre - Spinal Cord 349. The number of spinal nerves in man- 31 pairs 350. The middle coat of the eye, soft vascular and thin layer - Choroid 351. The sensitive cells present in the retina - Rods and Cones 352. The smallest bone in the human body - Stapes 353. Most important part of nervous system- Brain 354. The membrane covering the brain and spinal cord - Meninges 355. Response to a stimulus without the intervention of the will of an animal - Reflex Action 356. The point in the centre of the retina where the rods and cones are highly concentrated -Yellow Spot 357. One neuro-transmitter - Acetyl Choline 358. Defect of the eye in which distant objects are not seen clearly - Myopia 359. Defect of the eye in which near objects are not seen clearly - Hypermetropia 360. A bony socket in which eye is well protected - Orbit 361. A small opening in the centre of the Iris - Pupil 362. Inner sensitive coat of the eye ball - Retina

*Most Asked and Expected Science One Liners* 1. Optical fibre works on which of the following principle of light? - Total internal reflection 2. The fuse in an electric circuit is connected in - series with live 3. Which of the following is a radioactive element? – Uranium 4. Which of the following are longest cells of human body? - Nerve cells 5. Which organ is affected by Pneumonia disease? – Lungs 6. Which of the following transports water from the roots of the plant to its leaves? – Xylem 7. The function of haemoglobin in the body is – Transport of Oxygen 8. Kidney stones are composed of - Calcium Oxalate 9. Which blood group is universal donor? - O– 10. Who is known as the father of periodic table? - Dmitri Mendeleev 11. On which principle does the hydraulic lift works? - Pascal's law 12. What is the common name of CaOCl2? - Bleaching Powder 13. By which method, glucose is converted in to alcohol? – Fermentation 14. Process of gaining electrons is known as – Reduction 15. What happens in an oxidation reaction? - Electrons are lost 16. DNA contains - Pentose Sugar 17. The part of the eyes having the larger refractive index is - lens 18. What is the chemical name of heavy water? – (D2O) Deuterium Oxide 19. How does Hydra reproduce? – Budding 20. How does Amoeba reproduce? – Binary Fission 21. Halogens belong to which group in the periodic table? – 17 22. Disease related to Sleep ? – Insomnia 23. Which hormone in boys is released at the age 15-16? - Testosterone 24. Which is the largest part of the brain? - cerebrum 25. Jaundice affects which human organ? - liver 26. How many chambers does the human heart have? – 4 27. What is the melting point of Tungstun? – 3300 28. What acid is present in sour milk? – Lactic acid 29. What is the chemical formula of Borax – Na2[B4O5(OH)4]•8H2O 30. Which Periodic table is based on Atomic number? – Modern Periodic Table 31. Swelling of gum is termed as? – Scurvy 32. What is the biological name of RBC? – Erythrocytes 33. Who is the father of Hereditary? – Gregor Mendel 34. Modern periodic table was based on what? – Mendeleev’s table 35. Scurvy is caused due to deficiency of which vitamin? – Vitamin C 36. Goitre is caused because of which gland? – Thyroid 37. Who started pulse polio? – India 38. Who is the founder of Agra? – Sikandar Lodhi 39. Which acid is made in stomach? – (HCL) Hydrocholric acid 40. What is the function of Xylem? - transport water from roots to shoots and leaves 41. How much amount of water is present in Plasma? – 90-92 42. Embryo gets it’s food from? – Placenta 43. What is the function of Phloem? – Transfer food 44. Which elements lie on the right side of the periodic table are? – Non metals 45. Who discovered protein? - Jacob Berzelius 46. What is the unit of acceleration? - meters per second 47. Litmus is extracted from what? – Lichens 48. Which non-metal is in liquid state? – Bromine 49. Value of g? - 9.8 m/s2 50. Atom was first discovered by? – Dalton 51. Periodic Table vertical lines are called? – Groups 52. What is the powerhouse of cell? – Mitochondria 53. What is the normal human blood pressure? - 120/80