Scottish First Minister Alex Salmond, speaking to BBC News 24, accused the Chancellor of "political sabre-rattling".
He said that was for the "very simple reason that huge Scottish resources such as oil and gas would continue to protect the sterling balance of payments"
Speaking in Glasgow Chancellor George Osborne said, "the conclusion is clear, the pound we share works well. The saying goes - if it ain't broke don't fix it, but I say, if it ain't broke don't break it."
He added, "I want the best for Scotland and for all our United Kingdom. We're better together."
Speaking in Glasgow the Chancellor has said: