MCQ
In ${H_2}{O_2}$, the two oxygen atoms have
- AElectrovalent bond
- ✓Covalent bond
- CCoordinate bond
- DNo bond

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$1.$ The succeeding operations that enable this transformation of states are
$(A)$ Heating, cooling, heating, cooling
$(B)$ Cooling, heating, cooling, heating
$(C)$ Heating, cooling, cooling, heating
$(D)$ Cooling, heating, heating, cooling
$2.$ The pair of isochoric processes among the transormation of states is
$(A)$ $K$ to $L$ and $L$ to $M$
$(B)$ $L$ to $M$ and $N$ to $K$
$(C)$ $L$ to $M$ and $M$ to $N$
$(D)$ $M$ to $N$ and $N$ to $K$
Give the answer question $1$ and $2.$
| $I.P.$ | Reason |
| $(A)$ $N > O$ | Half filled configuration |
| $(B)$ $Zr < Hf$ | Lanthenide contraction |
| $(C)$ $Na > K$ | $Z_{eff}$ |
| $(D)$ $Al < Ga$ | Transition contraction |