MCQ
Carbon has no tendency to form complex compounds due to:
- AIts small size.
- BThe availability of vacant $d-$orbitals.
- ✓Non$-$availability of vacant $d-$orbitals.
- DNo tendency to form covalent bonds.
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$Y$ is
$A.$ The electron gain enthalpy of $F$ is more negative than that of $Cl$
$B.$ Ionization enthalpy decreases in a group of periodic table
$C.$ The electronegativity of an atom depends upon the atoms bonded to it.
$D.$ $Al _2 O _3$ and $NO$ are examples of amphoteric oxides.
Choose the most appropriate answer from the options given below: