If we pass current through the sucrose solution the galvanometer will not show any deflection because sucrose molecules:
Correct answer: D. Remain neutral
- A. Move towards cathode
- B. Move towards anode
- C. React with water
- D. Remain neutral
Explanation
Sucrose molecules are electrically neutral, meaning they have an equal number of positive and negative charges. Therefore, when current is passed through a sucrose solution, the molecules will not move towards the cathode or anode, nor will they react with water. As a result, the Galvanometer will not show any deflection. However, if the sucrose solution contains ions or other charged particles, the Galvanometer will show deflection as these charged particles will move toward the oppositely charged electrode.
This question appeared on the ETEA MDCAT 2010 paper, which you can sit online with every answer explained.
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