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प्रश्न
The valency of hydrogen is one, as per the molecular formula H2O. Therefore valency of 'Fe' turns out to be ______ as per the formula Fe2O3.
रिकाम्या जागा भरा
उत्तर
The valency of hydrogen is 'one as per the molecular formula H2O. Therefore valency of 'Fe' turns out to be three as per the formula Fe2O3.
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