The number of parts by mass of the element or compound, which combines or displaces directly or indirectly, one part by mass of hydrogen is called:
A
atomic mass
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B
molecular mass
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C
equivalent mass
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D
formula weight
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Solution
The correct option is D equivalent mass Equivalent mass is the number of parts by weight of an element, which can displace or combine with 1.008 parts by weight of hydrogen or 8 parts by weight of oxygen.