Previous Year Questions

Practice Questions

Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.

Displaying 6 - 10 of 351
Hard
. SOF National Science Olympiad (NSO/ISO) · Set C · 2024 . Sample
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Q. 343
Calculate the number of moles present in 17 g of ammonia (NH3). (Molar mass = 17 g/mol)
Easy
. SOF National Science Olympiad (NSO/ISO) · Set D · 2024 . Sample
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Q. 359
Find the mass of 5 mole(s) of ammonia (NH3). (Molar mass = 17 g/mol)
Easy
. SOF National Science Olympiad (NSO/ISO) · Set B · 2026 . Sample
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Q. 375
An atom of Potassium has atomic number 19 and mass number 39. How many neutrons does it contain?
Medium
. SOF National Science Olympiad (NSO/ISO) · Set C · 2026 . Sample
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Q. 391
Which substance is used in antacid tablets to relieve acidity/heartburn?
Hard
. SOF National Science Olympiad (NSO/ISO) · Set B · 2025 . Sample
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Q. 407
Which property allows metals to be drawn into thin wires?