Question

pb (OH)NO3 is a acidic salt .why do u think so?

Answer 1

HERE IS YOUR ANSWER

The reaction

Pb(OH)2 + HNO3 ---> Pb(OH)NO3 + H2O

shows that Pb(OH)NO3 is  

The answer given is basic salt..

Note :  It is basic, since it can still donate an OH^- group and react with an acid.