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Aradhita added zinc granules in iron sulphate solution, and made a few observations. Identify the incorrect observation.
(i) Pale green solution becomes colourless.
(ii) Black deposit seen on zinc granules.
(iii) Red deposit seen on zinc granules.
(iv) Colourless solution becomes pale green.
  • a)
    (i) and (ii)
  • b)
    (iii) and (iv)
  • c)
    (ii) and (iii)
  • d)
    (i) and (iv)
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Aradhita added zinc granules in iron sulphate solution, and made a few...
Observations made by Aradhita after adding zinc granules in iron sulphate solution:
- Pale green solution becomes colourless.
- Black deposit seen on zinc granules.
- Red deposit seen on zinc granules.
- Colourless solution becomes pale green.

The incorrect observation is option (b) - (iii) and (iv).

Explanation:
- When zinc granules are added to iron sulphate solution, a displacement reaction takes place as zinc is more reactive than iron. Zinc displaces iron from iron sulphate and forms zinc sulphate.
- The pale green color of iron sulphate solution disappears as iron ions are removed from the solution.
- Black deposit is seen on zinc granules which is actually the displaced iron from iron sulphate.
- Red deposit is not seen on zinc granules. This observation is incorrect.
- The colorless solution becomes pale green due to the formation of zinc sulphate which is pale green in color.

Therefore, the correct observations are (i), (ii), and (iv) while the incorrect observation is (iii).
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Community Answer
Aradhita added zinc granules in iron sulphate solution, and made a few...
When zinc granules (Zn) is added to FeSO4  then Zn being more reactive than Fe displace Fe from FeSO4 and form ZnSO4  which in turn form the colourless solution which mean (iv) is wrong  and also there is no formation of any red deposits on zn granule so (iii) is also wrong  
and in question they asked about incorrect statement so statement (iii) and (iv) are incorrect 
there for option B is answer 
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Aradhita added zinc granules in iron sulphate solution, and made a few observations. Identify the incorrect observation.(i) Pale green solution becomes colourless.(ii) Black deposit seen on zinc granules.(iii) Red deposit seen on zinc granules.(iv) Colourless solution becomes pale green.a)(i) and (ii)b)(iii) and (iv)c)(ii) and (iii)d)(i) and (iv)Correct answer is option 'B'. Can you explain this answer?
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Aradhita added zinc granules in iron sulphate solution, and made a few observations. Identify the incorrect observation.(i) Pale green solution becomes colourless.(ii) Black deposit seen on zinc granules.(iii) Red deposit seen on zinc granules.(iv) Colourless solution becomes pale green.a)(i) and (ii)b)(iii) and (iv)c)(ii) and (iii)d)(i) and (iv)Correct answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Aradhita added zinc granules in iron sulphate solution, and made a few observations. Identify the incorrect observation.(i) Pale green solution becomes colourless.(ii) Black deposit seen on zinc granules.(iii) Red deposit seen on zinc granules.(iv) Colourless solution becomes pale green.a)(i) and (ii)b)(iii) and (iv)c)(ii) and (iii)d)(i) and (iv)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Aradhita added zinc granules in iron sulphate solution, and made a few observations. Identify the incorrect observation.(i) Pale green solution becomes colourless.(ii) Black deposit seen on zinc granules.(iii) Red deposit seen on zinc granules.(iv) Colourless solution becomes pale green.a)(i) and (ii)b)(iii) and (iv)c)(ii) and (iii)d)(i) and (iv)Correct answer is option 'B'. Can you explain this answer?.
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