1.

S1:  E2O5 is less acidic than E2O3 (element E is belongs to 15th group).S2 : E2O3 acidic strength decreases down the group (element E is belongs to 15th group). (1) Both S1, & S2 are true (2) Both S1 & S2 are false(3) S1. is true & S2 is false(4) S1 is false & S2 is true

Answer»

Correct option is  (1) Both S1, & S2 are true

S1: In 15th group oxide higher the oxidation state of element higher is acidic character
Example: P2O3 less acidic than P2Os.
15th group
N2O3 Acidic
P2O3 Acidic
As2O3 Amphoteric
Sb2O3 Amphoteric
Bi2O3 Basic



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