According to Avogadro law the correct statements are 
a) Volume of gas is proportional to the no. of moles at constant T and P
b) The pressure of a gas is directly proportional to temp. of the gas under all conditions
c) Equal volumes of different gases under similar conditions consist of equal no. of molecules
d) Equal volumes of different gases under same conditions have equal no. of atoms 

Options

A. b,c
B. a,c
C. d,b
D. c,d

Answer

B