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Question

One mole of $$(NH_4)_2Cr_3O_7$$ contains :


A
1 mole of nitrogen.
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B
4 moles of hydrogen.
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C
1 mole of chromium.
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D
7 moles of oxygen.
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Solution

The correct option is D $$7$$ moles of oxygen.
One mole of $$(NH_4)_2Cr_3O_7$$ contains:
$$2$$ mole $$N$$
$$8$$ mole $$H$$
$$3$$ mole $$Cr$$
$$7$$ mole $$O$$.

Chemistry

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