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 4166 - 4170 of 5614
Easy
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2024 . Sample
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Q. 352
Find the mass of 2 mole(s) of sodium hydroxide (NaOH). (Molar mass = 40 g/mol)
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2024 . Sample
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Q. 353
Calculate the number of moles present in 32 g of oxygen gas (O2). (Molar mass = 32 g/mol)
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2025 . Sample
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Q. 354
Find the mass of 4 mole(s) of sodium chloride (NaCl). (Molar mass = 58.5 g/mol)
Easy
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2026 . Sample
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Q. 355
Find the mass of 2 mole(s) of calcium carbonate (CaCO3). (Molar mass = 100 g/mol)
Medium
. SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2026 . Sample
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Q. 356
Calculate the number of moles present in 200 g of calcium carbonate (CaCO3). (Molar mass = 100 g/mol)