SSLC Science and Technology NIOS I Welcome to your SSLC Science and Technology NIOS I Total Questions: 50 Name Mobile No: 1. Which of the following is a physical change? Burning of paper Rusting of iron Cooking of food Melting of ice None Hint 2. Atomic structure helps us understand: Motion of planets Earthquakes Chemical bonding Weather changes None Hint 3. The SI unit of length is: Millimetre Metre Centimetre Kilometre None Hint 4. Which form of energy is stored in food? Light energy Mechanical energy Heat energy Chemical energy None Hint 5. Which of the following is a communicable disease? Tuberculosis Cancer Blood pressure Diabetes None Hint 6. Which of the following is an isotope of hydrogen? Helium Oxygen Nitrogen Deuterium None Hint 7. Which subatomic particle is responsible for electric current? Nucleus Electron Proton Neutron None Hint 8. Plants prepare their food by the process of: Transpiration Photosynthesis Respiration Digestion None Hint 9. Which of the following is a renewable resource? Coal Petroleum Natural gas Solar energy None Hint 10. Which element has atomic number 1? Oxygen Nitrogen Helium Hydrogen None Hint 11. A positively charged ion is called: Atom Anion Isotope Cation None Hint 12. Which gas is essential for respiration? Oxygen Carbon dioxide Nitrogen Hydrogen None Hint 13. Which shell is closest to the nucleus? N shell K shell M shell L shell None Hint 14. The main function of the heart is to: Help breathing Digest food Pump blood Control brain None Hint 15. Overuse of technology may lead to: Biodiversity growth Peace Environmental pollution Resource conservation None Hint 16. Atom is the smallest unit of: A solution A mixture A compound An element None Hint 17. Mass number is the sum of: Only neutrons Protons and neutrons Electrons and neutrons Protons and electrons None Hint 18. The atomic number of an element represents the number of: Electrons only Neutrons Nucleons Protons None Hint 19. The nucleus of an atom contains: Protons and neutrons Only protons Only neutrons Only electrons None Hint 20. Valence electrons are present in the: Outermost shell Nucleus Middle shell Innermost shell None Hint 21. Which vitamin is produced in the human body in sunlight? Vitamin B Vitamin C Vitamin A Vitamin D None Hint 22. An ion is formed due to: Nuclear reaction Loss or gain of electrons Gain of protons Loss of neutrons None Hint 23. Science and technology are important because they: Increase superstition Improve quality of life Reduce knowledge Promote ignorance None Hint 24. Rusting of iron is an example of: Physical change Chemical change Temporary change Reversible change None Hint 25. Vaccination helps in: Preventing diseases Curing diseases instantly Spreading infection Increasing pain None Hint 26. Which instrument is used to measure temperature? Ammeter Hygrometer Barometer Thermometer None Hint 27. Which particle determines the chemical properties of an atom? Neutron Electron Nucleus Proton None Hint 28. The atomic mass of an element depends mainly on: Protons and neutrons Neutrons Protons Electrons None Hint 29. The force that pulls objects towards the Earth is: Frictional force Muscular force Gravitational force Magnetic force None Hint 30. The number of neutrons in an atom is calculated by: Atomic number × 2 Mass number – atomic number Atomic number – mass number Mass number ÷ atomic number None Hint 31. Energy is defined as the ability to: Eat food Do work Produce sound Create matter None Hint 32. Which of the following is a branch of science? Medicine Architecture Physics Engineering None Hint 33. Isotopes are atoms of the same element having: Same chemical properties only Same number of neutrons Same mass number Same atomic number None Hint 34. The charge on an electron is: Variable Negative Neutral Positive None Hint 35. The maximum number of electrons in the first shell is: 8 4 2 18 None Hint 36. Science is mainly based on: Observation and experiment Tradition Belief Imagination None Hint 37. Matter is anything that: Has colour Has smell Occupies space and has mass Can be seen None Hint 38. Which part of the plant is mainly responsible for photosynthesis? Stem Flower Root Leaf None Hint 39. Neutral atom means: Electrons > protons Protons = electrons Neutrons = electrons Protons > electrons None Hint 40. Microorganisms that cause diseases are called: Producers Pathogens Useful microbes Decomposers None Hint 41. Which subatomic particle has no charge? Ion Electron Proton Neutron None Hint 42. The maximum number of electrons in the second shell is: 8 18 2 4 None Hint 43. Technology is best described as: Art Philosophy Pure science Application of scientific knowledge None Hint 44. Electrons revolve around the nucleus in: Straight lines Square paths Fixed circular orbits Random paths None Hint 45. Friction always acts: Downward Vertically upward Opposite to motion In the direction of motion None Hint 46. Who proposed the nuclear model of atom? Rutherford Dalton Bohr Thomson None Hint 47. Bohr’s model explains: Radioactivity Chemical reactions Nuclear fission Atomic structure None Hint 48. The basic unit of life is: Cell System Tissue Organ None Hint 49. Who discovered the electron? J.J. Thomson Dalton Bohr Rutherford None Hint 50. Which technology helps in instant communication? Agriculture Information technology Biotechnology Mining None Hint Time's up Share: admin Previous post SSLC Social Science NIOS VIII February 4, 2026 Next post SSLC Science and Technology NIOS II February 5, 2026
