Choose the wrong order:a)NH3

Question

Choose the wrong order:a)NH3 < PH3 < AsH3 (Acidity)b)Al2O3 < MgO < Na2O < K2O (Basicity)c)Li < Be < B < C (Ionization energy)d)Li+ < Na+ < K+ < Cs+ (Ionic radii)Correct answer is option 'C'. Can you explain this answer?

Answer

Be has filled 2s orbital so it need more ionisation energy

Answer

B)H2O c)CO2 d)CH4

Answer

Bcoz berrylium is completely filled so it requires maximum energy to loose electrons from valence shell that's why it's ionization energy is maximum so wrong order is c

Answer

Is B part is correct ie. K2O>Na2O

Answer

Be is filled 1s orbital.so,it has high I.E

Answer

This is because ionisation energy of Beryllium is more than Boron but less than carbon. Correct order is: Li

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