[amp_mcq option1=”Y < X < Z" option2="Y < Z < X" option3="X < Z < Y" option4="X < Y < Z" correct="option3"]
The correct answer is C. X < Z < Y.
Basicity is the ability of an atom or molecule to accept a proton. The more basic an atom or molecule is, the more easily it can accept a proton.
In the given compounds, X, Y, and Z, the atom with the most electronegative element is Z. Electronegative elements have a strong attraction for electrons, which makes them less likely to donate electrons. Therefore, Z is the least basic of the three compounds.
The atom with the least electronegative element is X. Non-electronegative elements have a weak attraction for electrons, which makes them more likely to donate electrons. Therefore, X is the most basic of the three compounds.
Y is intermediate in electronegativity between X and Z. Therefore, Y is more basic than Z but less basic than X.
In conclusion, the increasing order of basicity among the following is C. X < Z < Y.