DECEASED PARTNER - PARTNERSHIP DEED

Yes it can be mentioned

Yes , I think it is possible,

Please reffer to sec 42 of Indian partnership act.....
If there are more than 2 partners....then it is possible...either nominee or legal hair ( subject to the intention of agreement in deed)
But
if there are only 2 partners, then firm is dissolved ,on demise of one
please go through Indian Partnership Act

Yes mahesh ji... thanks for the information