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Question

Cinnabar (HgS) is a prominent ore of mercury. What is the percentage of mercury are present in 225 gms of pure HgS? (molar mass of Hg and S are 200.6 gm mol1 and 32 gm mol1 respectively)

A
194.04 gms
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B
200.6 gms
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C
320.4 gms
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D
260.8 gms
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