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A certain metal sulphide MS(2) is used e...

A certain metal sulphide `MS_(2)` is used extensively as a high temperature lubricant. If `MS_(2)` is `40.00%` by mass sulphur, atomic mass of M is

A

60

B

96

C

100

D

80

Text Solution

Verified by Experts

The correct Answer is:
B
`%S=40=(2xx32)/(M+32)xx100`
`%M=60=(M)/(M+32)xx100`
`implies M=(6)/(4)xx2xx32=96`
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