The retardation can be done by adding _________

1.	The retardation can be done by adding _________
A.	Phenyl- ‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® napthylamine
B.	Phenyl -‚âà√≠‚Äö√¢¬ß ‚Äö√Ñ√∂‚àö√ë‚àö¬® napthylamine
C.	Benzine- ‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® napthylamine
D.	Benzine ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® napthylamine
Answer» C. Benzine- ‚âà√≠¬¨¬± ‚Äö√Ñ√∂‚àö√ë‚àö¬® napthylamine

Discussion