DOUBTSsss

tapan
u have to differentiate the 2nd ques thrice to get its order and get rid of the constants!!!!!!!!!!!

NO SHORTER METHD ???

Yeh to bada LAMBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA ho jaega

lamba??????????????????

3 baar differentiate lamba hai kya ??????????

arre par u hav to sub. the eleiminated variable EACH time........

ya fir shayd main kuch aur soch raha hoon.......

If possible post ur working......

Ans. for Q4 is (b).

Explanation : A C-C bond can be considered in four ways. In each case, three groups attached to a carbon atom are identical viz., H,Cl, F, D. So all possible eclipsed structures look identical. Hence for each case, only one eclipsed structure is possible. Therefore total no. of eclipsed structures = 4.

correct me if i am wrong !

even me thought the same way i think b is right ans