Medium SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · . Sample Which disease is caused by a deficiency of vitamin C? A Rickets B Scurvy C Beriberi D Night blindness Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
Which one of the following is a double displacement reaction? SOF National Science Olympiad (NSO/ISO) . Medium · Chemistry · 2026 See Explanation
How many of the following are chemical changes? (i) Burning of paper (ii) Melting of wax (iii) Curdling of milk (iv) Dissolving salt in water SOF National Science Olympiad (NSO/ISO) . Medium · Chemistry · 2026 See Explanation
The table shows four species: W: 6 protons, 6 neutrons X: 7 protons, 7 neutrons Y: 6 protons, 8 neutrons Z: 8 protons, 8 neutrons Which two species are isotopes of the same element? SOF National Science Olympiad (NSO/ISO) . Medium · Chemistry · 2026 See Explanation
Which of the following correctly shows the sequence of energy transformation in a hydroelectric power plant? SOF National Science Olympiad (NSO/ISO) . Medium · Physics · 2026 See Explanation
A cricket ball of mass 0.15 kg moving at 20 m/s is stopped by a fielder in 0.1 s. What is the average force exerted by the fielder on the ball? SOF National Science Olympiad (NSO/ISO) . Medium · Physics · 2026 See Explanation