The acceleration due to gravity is  at a point distance r from the center of earth . if . R.  if r<R.then

If then

The variable v is used just for simplification. When we take partial derivative w.r.t to certain variable, we keep other variables constant.

Which type of isomerism is observed between I and II
     and 

How many spatial orientations are possible in following compounds-

The configuration of stereo center in the compound is –

The IUPAC name of the given compound –

Shows which type of isomerism
and 

The two compounds shown below are –

The compound whose stereo- chemical formula is written below exhibits ‘x’ geometrical isomers and ‘y’ optical isomers :

The value of x and y are :

The correct statements about the compounds a, b and c is/are

The absolute configuration of the following compound is :

The name of the compound is

The correct statement(s) about the compound given below is (are)

If in above compound is rotated by angle in anticlockwise direction along , which of the following form will be produced :

The absolute configuration of

The correct IUPAC name of the compound is