10 Important MCQs Multiple choice questions Group 15 Elements P Block Elements Class 12
Notes on important multiple choice questions group 15 elements
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10 Important MCQs Multiple choice questions Group 15 Elements P Block Elements Class 12
• Nitrogen because of its small size and high electronegativity has strong tendency to form p – pi p – pi bonds with itself. Nitrogen has higher ionization energy and does not have d orbitals.
• SbCl3 has the smallest bond angle among the chlorides of other family members of group 15 elements. This is due to the lowest electronegativity of Sb.
• NF3 is least basic among the tri halides of Nitrogen because lone pair of electrons on nitrogen is least available for protonation due to high electronegativity of fluorine.
• PF3 is a Lewis base due to the presence of lone pair on Phosphorus atom. BF3 is a Lewis acid due to incomplete octet. CF4 is neutral due to complete octet and SiF4 behaves as a Lewis acid due to the presence of empty d orbitals on Si atom.
• Both nitrogen and fluorine has no d orbitals to accept the electrons to needed by water for hydrolysis.
• N3H has the highest oxidation state of Nitrogen among N2H4, NH3, N3H and NH2OH.
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