rangdravya narangi 13

rangdravya narangi 13 heey eka sendriya sanyug aanee eka ezo sanyug aahe. haah eka vyavsayik naringi rangdravya aahe. tyache diarlide rangdravya mhanoonahi vargikaran kele jaate, jeey 3,3 '-dichlorobenzidinpasoon tayar kele jaate. tyacha rangdravya narangi 3 shhee jawalcha sambandh aahe, jyamadhye done phenyl gatanna pii-tollyl gatanni badalale aahe. 

