2 and 3
No, tive is not a word.
Some words that end with 'tive' are:Active,addictiveadditiveadjectiveaffirmativeargumentativeassertiveattentiveattractive,automotivecaptivecognitivecomparativecompetitiveconductiveconsecutiveconservativecontraceptivecorrectivecreativedefectivedefinitivederivativedetectivedisruptivedistinctiveelectiveemotiveexecutiveexhaustiveexploitativefigurativeformativefixativeformativefugitiveimperativeinitiativeindicativeinfinitiveinformativeinhibitiveinitiativeintrospectiveintuitivelaxativelocomotivelucrativemotivenarrativenativenegativeobjectiveobstructiveoperativeperceptiveperspectiveplaintivepositivepreventiveprimitiveproductivepunitiveradioactivereceptivereflectiverefractiverepetitiverepresentativerelativeremunerativerepetitiverestorativeretentivesecretiveseductiveselectivesubjectivesuperlativesupportivetransitivevindictivevotive
lungs can not be donated.
potential difference
"Tive" isn't a word, so it's no "part of speech".
strong and positive
-3
ap-pos-i-tive
at-ten-tive
There are five syllables in the word representative : rep/re/sent/a/tive
3 cre-a-tive
tive