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The compound among the following that can be used as fuel in the fuel cells is-

1.	Methane	2.	Methanol
3.	Sulphuric acid	4.	Both 1 and 2

Subtopic: Batteries & Salt Bridge |

64%

Level 2: 60%+

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Rusting of iron is envisaged as setting up of an electrochemical cell because:

1.	Oxidation of iron takes place during rusting.
2.	Reduction of iron takes place.
3.	Iron shows disproportionation reaction.
4.	Oxygen is getting oxidised.

Subtopic: Batteries & Salt Bridge |

79%

Level 2: 60%+

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