1.

For which of the following sets, all the compounds are ionic ?

Answer»

`NAF,BF_3 ,MG F_2`
`NaBr ,Mg Br_2 ,MgO`
`al_2 O_3 ,MgO,SO_3`
`NCl_3 , BeCl_2 ,AlCl_3`

ANSWER :B


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