Question 17 : Lead dioxide is used as ----
Question 18 : Which of the group V oxoacids is manufactured by Ostwald process?
Question 19 : Which of the group V metals can not be obtained from its sulphide ore?
Question 20 : Which of the following is responsible for the easy hydrolysis of lead halides ?
availability of lone pair of electron in P orbital
completely filled d orbitals by electron
Availability of d-orbitals and low bond energy of Pb-H bond
availability of lone pair of electron in d orbital
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