MCQ
Which has weakest bond
- ADiamond
- ✓Neon (Solid)
- C$KCl$
- DIce
In potassium chloride $( K C l )$ is containing an ionic bond.
In ice molecule containing hydrogen bond.
therefore, decreasing order of strong bond is as follows:-
Ionic $\,>\,$ Covalent $\,>\,$ Hydrogen $\,>\,$ Dipole-Dipole $\,>\,$ VanderWaal
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( $p$ : pressure, $V$ : volume, $T$ : temperature, $H$ : enthalpy, $S$ : entropy)
$MnO_4^ - + 5F{e^{2 + }} + 8{H^ + } \to M{n^{2 + }} + 5F{e^{3 + }} + 4{H_2}O$,
here $10\, ml$ of $0.1\, M$ $KMn{O_4}$ is equivalent to
Given: $\Delta H ^0=-54.07\,kJ\,mol ^{-1}$
$\Delta S ^{\circ}=10\,JK ^{-1}\,mol ^{-1}$
(Take $2.303 \times 8.314 \times 298=5705$ )