Medium SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2026 . Sample Calculate the number of moles present in 360 g of glucose (C6H12O6). (Molar mass = 180 g/mol) A 2.0 mol B 2.5 mol C 1.5 mol D 3.0 mol Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
A few drops of dilute hydrochloric acid are added to sodium carbonate. A gas is evolved that turns lime water milky. The gas is: SOF National Science Olympiad (NSO/ISO) . Easy · Chemistry · 2026 See Explanation
A measuring cylinder contains 40 mL of water. When a stone is gently dropped into it, the water level rises to 65 mL. What is the volume of the stone? SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2026 See Explanation
Most non-metals are poor conductors of electricity. Which of the following non-metallic forms is a good conductor of electricity? SOF National Science Olympiad (NSO/ISO) . Medium · Chemistry · 2026 See Explanation
A lunar eclipse occurs when: SOF National Science Olympiad (NSO/ISO) . Easy · Science · 2026 See Explanation
Mendeleev left gaps in his periodic table and predicted the properties of "eka-aluminium". Which element, discovered later, matched this prediction? SOF National Science Olympiad (NSO/ISO) . Medium · Chemistry · 2026 See Explanation