One litre of an unknown gas weighs 1.25 g at N.T.P. which of the following gas pertains to the above data ?

One litre of an unknown gas weight 1.25 g at STP. Which one of the following can be the formula for the gas ?

One litre of an unknown gas weighs 1.25 g at NTP. The possible formula of the gas is :

One litre of a gas at S.T.P. weighs 1.16 g. It can possibly be

One litre of a gas at STP weight 1.16 g it can possible be

One litre of a gas at STP weight 1.16 g it can possible be

1.7 g of an unknown gas occupies 2.24 L at N.T.P Calculate its molecular mass.

One litre of a gas at S.T.P. weight 1.16 g. It can possibly be