MCQ
Which of the following reactions represent(s) redox process?
- AElectrochemical process for extraction of highly reactive metals and non-metals.
- BManufacturing of caustic soda.
- CCorrosion of metals.
- DAll of the above.
Explanation:
Electrochemical processes for the extraction of highly reactive metals and non-metals, manufacturing of chemical compounds like caustic soda, operation of dry and wet batteries and corrosion of metals fall within the range of redox processes.
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$\mathrm{C}_{2} \mathrm{H}_{7} \mathrm{~N}+\left(2 \mathrm{x}+\frac{\mathrm{y}}{2}\right) \mathrm{CuO} \rightarrow \mathrm{x\,CO}_{2}+\frac{y}{2} \mathrm{H}_{2} \mathrm{O}+\frac{\mathrm{z}}{2} \mathrm{~N}_{2}+\left(2\, \mathrm{x}+\frac{\mathrm{y}}{2}\right) \mathrm{Cu}$
The value of $y$ is ...... .(Integer answer)