MCQ
Nucleophile is a species that should have:
- AA pair of electrons to donate.
- BPositive charge.
- CNegative charge.
- DElectron deficient species.
Explanation:
Nucleophile (nucleus-loving) is a chemical species that donates an, electron pair to an electrophile (electron-loving). Hence, a nucleophile should have either a negative charge or an electron pair to donate.
Thus, options (a) r and (c) are correct.
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| $I.P.$ | Reason |
| $(A)$ $N > O$ | Half filled configuration |
| $(B)$ $Zr < Hf$ | Lanthenide contraction |
| $(C)$ $Na > K$ | $Z_{eff}$ |
| $(D)$ $Al < Ga$ | Transition contraction |
