MCQ
$C_P -C_V = R$ This $R$ is
- AChange in $KE$
- BChange in rotational energy
- ✓Work done which system can do on expanding one mole of the gas per degree increase in temperature
- DAll are correct
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Statement- $I$: Along the period, the chemical reactivity of the element gradually increases from group $1$ to group $18$.
Statement - $II$: The nature of oxides formed by group $1$ element is basic while that of group $17$ elements is acidic.In the the light above statements, choose the most appropriate from the questions given below:
$(i)\, [Xe]\,6s^1$
$(ii)\, [Xe]\,4f^{14}5d^16s^2$
$(iii)\, [Ne]\,3s^23p^5$
$(iv)\, [Ar]\,3d^74s^2$
Which one of the following statements about these elements is not true ?
Where $A$ is $PCl^+_4$ while $B$ is $PCl^-_ 6$
Which of the following statement is INCORRECT :
$(I)$ $B$ to $A$ involvement of number of $d-$orbital in hybridization increases
$(II)$ $A$ to $B$ precentage of $p-$character in $P-Cl$ bond increases
$(III) $ Number of covalent bond in $A$ and $B$ are same
$(IV)$ $B$ is product of Lewis acid-base interaction which is associated with super octet molecule only