Element P, Q, R and S belong to the same group. The oxide of... — Chemistry | Mockzy | Mockzy

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Element P, Q, R and S belong to the same group. The oxide of P is acidic, oxide of Q and R are amphoteric while the oxide of S is basic. Which of the following element is the most electropositive ?

A

P

B

Q

C

R

D

S

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Which of the following is an amphoteric oxide?

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