ExamsMy practice
Ques. 1JEE Main 2024, 31 January (Evening Shift)
Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below :
- Statement I is correct but statement II is incorrect
- Both statement I and statement II are incorrect
- Statement I is incorrect but statement II is correct
- Both statement I and statement II are correct
Answer
(1) Statement I is correct but statement II is incorrect
Solution
S8 + 12OH- 4S2- + 2S2O32- + 6H2O
O.N. of S: 0 → −2 (reduced) and 0 → +2 (oxidised) ⇒ disproportionation ⇒ Statement I correct
∵ In ClO4-, Cl is +7 (its highest O.N.), it cannot be oxidised further ⇒ no disproportionation ⇒ Statement II incorrect
Answer: (1)