Question

arrange the three state of matter in order of decreasing in intermolecular space

Answer 1

the three state of matter in order of decreasing in intermolecular space
is
Gas > Liquid >Solid

Answer 2

Inter-molecular space is the space between two molecule or atom. In solids it is little, it is more in liquids is more the solids but less than liquids and in gases it's the maximum and so in order of increasing inter-molecular spaces we have solids, liquids and gases.