Previous Year Questions
Practice Questions
Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.
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Q. 377
When zinc granules are added to a copper sulphate solution, the blue colour fades and copper is deposited. What type of reaction is this?
Q. 378
Balance the equation: __Fe + __O2 → __Fe2O3
Q. 379
The chemical process by which iron develops a reddish-brown coating when exposed to moist air over time is called what?
Q. 380
Calcium carbonate on heating decomposes into calcium oxide and carbon dioxide. What type of reaction is this?
Q. 381
Balance the equation: __N2 + __H2 → __NH3