JEE Mains · Chemistry · STD 11 - 7. Redox reactions
The equation which is balanced and represents the correct product(s) is :
- A \(Li_2O + 2KCl \rightarrow 2LiCl + K_2O\)
- B \([ CoCl( NH_3 )_5]^+ +5H^+ \rightarrow Co^{2+} +5NH_4^+ +Cl^-\)
- C \([ Mg(H_2O)_6]^{2+} +(EDTA)^{4-} \xrightarrow{{excess\,NaOH}} \) \([Mg(EDTA)]^{2+} +6H_2O\)
- D \(CuSO_4 + 4KCN \rightarrow K_2[Cu(CN)_4]+K_2SO_4\)
Answer & Solution
Correct Answer
(B) \([ CoCl( NH_3 )_5]^+ +5H^+ \rightarrow Co^{2+} +5NH_4^+ +Cl^-\)
Step-by-step Solution
Detailed explanation
Equation \(-1\) is not balanced with respect to charge. Equation \(-2\) gives \(K _3\left[ Cu ( CN )_4\right]\) as product. Equation \(-3\) reaction is unfavourable in the forward direction \(\left( K _2 O\right.\) is unstable, while \(LiO _2\) is stable). Equation \(-4\) is…
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