MCQ
Hydrogen bond energy is equal to
- A$3 -7$ $cals$
- B$30 -70\, cals$
- ✓$3 -10\, k\,cals$
- D$30 -70\, k\,cals$
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The value of $x$ is
Predict the value of $'X'$ is .............. $\mathrm{eV}$

$(i)$ Pyro silicate
$(ii)$ Cyclic silicate
$(iii)$ Double chain silicate
$(iv)$ Single chain silicate
$(v)$ $3D$ silicate
$(vi)$ Sheet silicate