SATHEE: Redox Reactions And Electrochemistry Ques 361

Redox Reactions And Electrochemistry Ques 361

Question: In the following unbalanced redox reaction, $C u_{3} P + C r_{2} O_{7}^{2 -} \to C u^{2 +} + H_{3} P O_{4} + C r^{3 +}$ Equivalent weight of $H_{3} P O_{4}$ is

Options:

A) $\frac{M}{3}$

B) $\frac{M}{6}$

C) $\frac{M}{7}$

D) $\frac{M}{8}$

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Answer:

Correct Answer: D

Solution:

[d] $\underset{\underset{- 3}{↑},}{C u_{3} P}, \to \underset{\underset{+ 5}{↑},}{H_{3} P O_{4}},$ Change in oxidation number =8 units of phosphorus
$∴$ Equivalent weight of $H_{3} P O_{4} = \frac{M}{8}$

Redox Reactions And Electrochemistry Ques 361

Question: In the following unbalanced redox reaction, $C u_{3} P + C r_{2} O_{7}^{2 -} \to C u^{2 +} + H_{3} P O_{4} + C r^{3 +}$ Equivalent weight of $H_{3} P O_{4}$ is

Options:

Answer:

Solution:

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Redox Reactions And Electrochemistry Ques 361

Question: In the following unbalanced redox reaction, Cu3P+Cr2O72−→Cu2++H3PO4+Cr3+ Equivalent weight of H3PO4 is

Options:

Answer:

Solution:

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Question: In the following unbalanced redox reaction, $C u_{3} P + C r_{2} O_{7}^{2 -} \to C u^{2 +} + H_{3} P O_{4} + C r^{3 +}$ Equivalent weight of $H_{3} P O_{4}$ is