Earlier, Scottish Tory Jackson Carlaw said Mr Salmond "had been misleading the public".

BBC: Scotland politics

The demand for a free service, by Tory health speaker Jackson Carlaw, comes as Westminster moves to introduce a free, one-stop number in England and Wales.

BBC: Tories call for NHS 24 to be a freephone service

They were pleased to hear Tory health spokesman Jackson Carlaw reassure them it's not their fault that people choose to be unhealthy, while he committed the Scottish Tories to opposing their Westminster colleagues on proposed moves to standard and plain cigarette packet design.

BBC: Shelves in a shop

Prominent Tory MPs including Environment Secretary Owen Paterson, Defence Secretary Philip Hammond and backbencher Stewart Jackson have said they cannot support gay marriage, and a number of MPs have signed the "Coalition for Marriage" petition opposing it.

BBC: Gay marriage: Boris Johnson and Michael Gove give backing