MCQ
A black sulphide ppt when treated with ozone becomes white, the white compound is
- A$ZnSO_4$
- B$CaSO_4$
- C$BaSO_4$
- ✓$PbSO_4$
Few examples of multiple bonding are $C = C , C = O , N = C$
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$(I)$ $TeF_6$ $(II)$ $SF_6$ $(III)$ $NCl_3$ $(IV)$ $NF_3$
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