In thetable given below , some commonly used positiveand negative radicals are listed . Use the crisscross method to obtain the formulae of the compound that is formed using the given radicals . Namethe compound thus obtained.{:("No.","Positive radicals","Nagative radicals","Formula","Name of the compound"),(1.,Al^(+3),PO_(4)^(-3),,),(2.,Ca^(+2),NO_(3)^(-1),,),(3.,NH_(4)^(+1),SO_(4)^(-2),,),(4.,Al^(+3),Ca^(-4),,):}

In thetable given below , some commonly used positiveand negative radi

1.	In thetable given below , some commonly used positiveand negative radicals are listed . Use the crisscross method to obtain the formulae of the compound that is formed using the given radicals . Namethe compound thus obtained.{:("No.","Positive radicals","Nagative radicals","Formula","Name of the compound"),(1.,Al^(+3),PO_(4)^(-3),,),(2.,Ca^(+2),NO_(3)^(-1),,),(3.,NH_(4)^(+1),SO_(4)^(-2),,),(4.,Al^(+3),Ca^(-4),,):}
Answer» Solution :(1)`AlPO_(4) to `Aluminium PHOSPHATE (2)`Ca(NO_(3))_(2)to`Calcium nitrate (3)`(NH_(4))_(2)SO_(4)to`Ammonium phosphate (4)`Al_(4)C_(3)to`Aluminium CARBIDE