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# Which of the following statements is not correct?

$\begin{array}{1 1}\text{Divalent tin or lead compounds are essentially ionic in nature while tetravalent are generally covalent}\\\text{Tin(II) compounds are invariably reducing agents}\\\text{Lead(II) compounds are more stable than Pb(IV) compounds}\\(C_2H_5)_2Pb\text{ acts as an antiknocking compound in petrol}\end{array}$

Answer : $(C_2H_5)_2Pb$ acts as an antiknocking compound in petrol
$(C_2H_5)_4Pb$ acts as an antiknocking compound in petrol