What is the nature of the bond between B and O in (C2H5)2OBH3 ?
Covalent
Co - ordinate covalent
Ionic bond
Banana shaped bond
Following pair is separated by yellow ammonium sulphide :
CdS , Bi2S1
Bi2S3 , PbS
PbS , HgS
CdS , Ag2S3
D.
CdS , Ag2S3
CdS , Ag2S3 can be separated by yellow ammonium sulphide .II A group and II B group radicals are distinguished by this reagents .