MCQ
Which one of the following is always not negative
- AEnthalpy of combustion
- BEnthalpy of formation
- CEnthalpy of neutralisation
- ✓Lattice enthalpy of formation
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$3p_x, 2s, 4d_{xy}, 3s, 4p_z, 3p_y, 4s$
| list $I$ | list $II$ |
| $(A)$ Butane $\to$ Isobutane | $(a)$ Cracking |
| $(B)$ Butane $\to$ Lower hydrocarbons | $(b)$ Isomerisation |
| $(C)$ $n-$ Heptane $\to $ Toluene | $(c)$ Reed reaction |
| $(D)$ Propane $\to$ $CH_3CH_2CH_2SO_2Cl$ | $(d)$ Aromatizatio |