4g each of aluminium foil and aluminium powder were introduced respectively into flasks P and Q. Flask P was treated with warm bench sodium hydroxide and all the aluminium dissolved in one hour. Flask Q was treated with cold sodium hydroxide and all the aluminium dissolved in 10 minutes. What was responsible for Q reacting faster than P?

4g each of aluminium foil and aluminium powder were introduced respectively into flasks P and Q.
Flask P was treated with warm bench sodium hydroxide and all the aluminium dissolved in one hour. Flask Q was treated with cold sodium hydroxide and all the aluminium dissolved in 10 minutes. What was responsible for Q reacting faster than P?

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A There were more aluminium atoms in Q than P
B The heat given off in retarded the reaction
C Q generated more pressure than P during the reaction
D P generated more pressure than Q
E Q has a greater surface area for the reaction than P

Correct Answer: Option E

Explanation:

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

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