List of top Chemistry Questions on sulphur asked in MET

Which of the following does not exist?
I. HO$_2$S—S—SO$_3$H II. HO—SO$_3$—OH
III. HS—S—SH IV. HS—SO$_3$—OH

Metal carbonyls can have formula M(CO)\(_x\) where \(x =\) number of CO units coordinated to metal M. What is the formula of the carbonyl of Fe (26) if EAN of Fe in metal carbonyl is 36?

In \( S_8 \) molecules, the type of hybridisation exhibited by sulphur is: