MCQ
The incorrect order is
- ACovalent character : $PbCl_2 > CaCl_2 > SrCl_2 > BaCl_2$
- ✓Thermal stability : $PbF_4 > PbCl_4 > PbBr_4 > Pbl_4$
- CMelting point : $KF > KC l > KBr > KI$
- DBoiling point : $CHCl_3 > CH_3Cl> CCl_4$
✓
Answer
Correct option: B.
Thermal stability : $PbF_4 > PbCl_4 > PbBr_4 > Pbl_4$
b
Substance can acts as both oxidizing as well as reducing agent when a metal atom is present in its intermediate step.
Substance can acts as both oxidizing as well as reducing agent when a metal atom is present in its intermediate step.
$O _3$ can acts as only oxidizing agent due to its unstable nature and decomposes to give nascent oxygen.
$HNO _3$ : Nitrogen is present in its highest oxidation state i.e., $+5$ so it can act as only oxidizing agent.
$SO _2$ :Sulphur is present in $+4$ oxidation state so it can act as both oxidizing as well as reducing agent.
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