Match Column I with Column II for the given properties/applications mentioned therein.
Column I | Column II |
(i) H | (a) Used in the name perhydrol |
(ii) | (b) Can be reduced to dihydrogen by NaH. |
(iii) | (c) Can be used in hydroformylation of olefin. |
(iv) | (d) Can be used in cutting and welding. |