A few drops of NaOH solution was added to an unknown salt forming a white precipitate which is insoluble in excess solution. The cation likely present is

The general formula of haloalkanes where X represents the halide is

The alkanol obtained from the production of soap is

Ethyne is passed through a hot tube containing organo-nickel catalyst to produce

Due to the unstable nature of ethyne, it is stored by dissolving in