MCQ
A completely filled $d$ orbital $({d^{10}})$
- ASpherically symmetrical
- ✓Has octahedral symmetry
- CHas tetrahedral symmetry
- DDepends on the atom
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How can this reaction is made to proceed in forward direction?
| Acid | $K_a$ |
| $HCN$ | $6.2\times 10^{-10}$ |
| $HF$ | $7.2\times 10^{-4}$ |
| $HNO_2$ | $4.0\times 10^{-4}$ |
Correct order of increasing base strength of the base $CN^-,F^-$ and $NO_2^-$ will be