A. +2
B. +3
C. +4
D. +5
Correct Answer: Option D
D. +5
Explanation
Pb(NO3)2= +2+2N+(−2×6)=0
= 2N=10
⇒ N=+5
A. +2
B. +3
C. +4
D. +5
Correct Answer: Option D
D. +5
Explanation
Pb(NO3)2= +2+2N+(−2×6)=0
= 2N=10
⇒ N=+5
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