JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
Consider the following reactions:
\( NaCl+K_{2}Cr_{2}O_{7}+H_{2}SO_{4}\rightarrow A+KHSO_{4}+NaHSO_{4}+H_{2}O \)
\( A+NaOH\rightarrow B+NaCl+H_{2}O \)
\( B+H_{2}SO_{4}+H_{2}O_{2}\rightarrow C+Na_{2}SO_{4}+H_{2}O \)
In the product 'C', 'X' is the number of \( O_{2}^{2-} \) units, 'Y' is the total number oxygen atoms present and 'Z' is the oxidation state of Cr. The value of X+Y+Z is __________ .
- A 11
- B 13
- C 15
- D 17
Answer & Solution
Correct Answer
(B) 13
Step-by-step Solution
Detailed explanation
\(A \rightarrow CrO _2 Cl _2\) \(B \rightarrow Na _2 CrO _4\) \(C \rightarrow CrO _5\) \(X=2, Y=5\) and \(Z=6\)
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