(a) How many stereoisomer of major product is / are formed during this reaction.

Number of mono bromo organic products.

(c) Number of planes of symmetry in

(d) Number of chiral center present in the following compound.

      
Write answer of part (a), (b), (c) & (d) in the same order and present the four digit number as answer. For example : If all these answer are 9 then fill 9999.