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 4156 - 4160 of 5614
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2025 . Sample
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Q. 342
Find the mass of 2 mole(s) of hydrochloric acid (HCl). (Molar mass = 36.5 g/mol)
Hard
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 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) · NSO Level 1 · 2025 . Sample
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Q. 344
Find the mass of 4 mole(s) of nitrogen gas (N2). (Molar mass = 28 g/mol)
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2024 . Sample
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Q. 345
Calculate the number of moles present in 14.0 g of nitrogen gas (N2). (Molar mass = 28 g/mol)
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2024 . Sample
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Q. 346
Find the mass of 1 mole(s) of methane (CH4). (Molar mass = 16 g/mol)