1. Given below are the figures showing particles of a matter in its three
states at the same temperature and pressure and contained in separate
containers of the same volume. The circles indicate the particles in the
three states of a matter.
O
0
O
O
0
O
o
o
o
O
0000000
0000000
0000000
0000000

O
(iii)
Which figure shows minimum attraction between the particles of the
matter?
(a) Figure (i)
(b) Figure (ii)
(c) Figure (iii)
(d) The figures do not indicate any thing about the inter particle
attraction.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.

Answer///an early form of the atomic theory; dalton atomic theory;