Two elements \( \mathrm{X} \) and \( \mathrm{Y} \) combine in gaseo...

Two elements \( \mathrm{X} \) and \( \mathrm{Y} \) combine in gaseous state to form \( X Y \) in the ratio \( 1: 35.5 \) by mass. The mass of \( Y \) that will be required to react with \( 2 \mathrm{~g} \) of \( X \) is:
a. \( 7.1 \mathrm{~g} \)
b. \( 3.55 \mathrm{~g} \)
c. \( 71 \mathrm{~g} \)
d. \( 35.5 \mathrm{~g} \)
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