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 certain metal sulphide MS_(2) is used extensively as a high temperat

1.	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
Answer» 60 96 100 80 Solution :`%S=40=(2xx32)/(M+32)XX100` `%M=60=(M)/(M+32)xx100` `IMPLIES M=(6)/(4)xx2xx32=96`