下列含氮化合物中,氮元素化合价由低到高排列的一组是( ) A.NH

下列含氮化合物中氮元素化合价由低到高排列的一组是(  )

ANH3  NO  HNO3             BNO  HNO3  NH3

CNO  NH3  HNO3          DHNO3  NHNO

答案

A

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