IIT JEE 2011 question no. 31 ( Paper - 2)
Correct option is only C, but according to the key issued by IIT JEE correct answers are C & D.
In D option according to the question paper-
Work done in moving unit positive charge from point A at potential Va to point B at potential Vb is Vb-Va
Correct definition must be -
Work done in moving unit positive charge slowly or without acceleration or against the electrostatic force from point A at potential Va to point B at potential Vb is Vb-Va
NOTE : Underline words are missing
IIT JEE- 2011 Paper-II Part-1: ChemistrySection-II
Question No. 12
The JEE answer is: CD
The experts answer is: ABCD
H2/Ni/Heat can reduce Esters as well as amides in to corresponding alcohol and amines. The reactant given is a saturated compound. So it can undergo catalytic hydrogenation by many catalyst with out requiring any selectivity. So options A & B should also be the answers.
References in support of above are :
- W. Carruthers, 3rd edition, page No. 416, Table No. 7.1
- Organic chemistry by I.L. Finar (international Sudent Edition), Vol. –I, page No. 179, table No. 6.1
- Molecules 2010, 15, 5139-5152; doi:10.3390/molecules15085139