The equilibrium constant for the gas phase reaction

n2 (g) + o2 (g) ↔ 2no (g)

is keq = 4.20 × 10-31 at 30 °c. at equilibrium,

a only reactants are present

b roughly equal amounts of products and reactants are present

c reactants predominate

d only products are present

e products predominate

only reactants are present

If equllibrium constant is greater than 10^3 then product predominates

If equllibrium constant is greater than 10^ -3  then reactant predominates

in between 10^3 and 10^-3 the reaction is in equllibrium

and we see that the above value is 10^-31, it is  very  small so the answer is reactants are presents

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