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Alkaline pyrogallol was used in an experiment. That experiment must have been connected ...

Alkaline pyrogallol was used in an experiment. That experiment must have been connected with
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Excretion
  • B Germination
  • C Transpiration
  • D Digestion
  • E Photosynthesis
Correct Answer: Option E
Explanation:
Alkaline pyrogallol is commonly used to absorb oxygen in experiments related to photosynthesis. It acts as a reducing agent, and in photosynthesis experiments, it is used to create an oxygen-free environment to study the oxygen produced by plants during photosynthesis. The absorption of oxygen by alkaline pyrogallol helps to measure the rate of oxygen production or the absence of oxygen in controlled conditions.

Here’s a brief explanation of why the other options are less likely:

A. Excretion – Alkaline pyrogallol is not typically used in excretion studies.

B. Germination – While oxygen is involved in germination, pyrogallol is not typically associated with this process.

C. Transpiration – Transpiration involves water loss from plants, not the absorption of oxygen.

D. Digestion – Alkaline pyrogallol isn’t involved in digestion experiments.

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