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