Stoichiometry
In a chemical process, the recycle stream is purged for

Limiting the inerts
Enriching the product
Increasing the product yield
Heat conservation

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Stoichiometry
A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

Equivalent weight of the metal is 8
Equivalent weight of the metal is 4
Atomic weight of the metal is 4
Atomic weight of the metal is 2

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