MCQ
What is the correct order of acidic nature
- A$SO_2 < SeO_2 < TeO_2$
- ✓$SO_2 > SeO_2 > TeO_2$
- C$SO_2 = SeO_2 = TeO_2$
- D$SO_2 < SeO_2 > TeO_2$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| 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 |

$R - X \rightarrow R ^{\oplus} X ^{\ominus} \rightarrow R ^{\oplus} \| X ^{\ominus} \stackrel{ Y^\ominus }{\rightarrow} R - Y + X ^{\ominus}$
Ion pair Solvent separated ion pair
A student writes general characteristics based on the given mechanism as:
$(a)$ The reaction is favoured by weak nucleophiles
$(b)$ $R^ \oplus$ would be easily formed if the substituents are bulky
$(c)$ The reaction is accompained by recemization
$(d)$ The reaction is favoured by non-polar solvents.
Which observations are correct $?$
| List $I$ | List $II$ |
| $1E_1\,\,1E_2\,\,1E_3$ | |
| $(A)$ $1510$ $-$ $-$ | $(1)$ $H$ |
| $(B)$ $495$ $6500$ $10200$ | $(2)$ $Li$ |
| $(C)$ $840$ $1630$ $13100$ | $(3)$ $Be$ |
| $(D)$ $600$ $2050$ $3100$ | $(4)$ $B$ |
( $1E$ in $KJ\,mol^{-1}$ )