MCQ
Aq. solution of sodium cyanide is
- AAcidic
- BAmphoteric
- ✓Basic
- DNetural
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Which of the following compounds can be $A$ ?
$(I)$ Number of $S-S$ bonds in $H_2S_nO_6$ are $(n + 1)$
$(II)$ When $F_2$ reacts with water gives $HF, O_2$ and $O_3$
$(III)$ $LiNO_3$ and $BaCl_2$ compounds are used in fire works
$(IV)$ $Be$ and $Mg$ hydrides are ionic and polymeric