MCQ
Which of the following is most electronegative
- ✓$O$
- B$S$
- C$Te$
- D$Se$
| Element - | $O$ | $S$ | $Sc$ | $Te$ | $Po$ |
| Electo negativity - | $3.5$ | $2.5$ | $2.4$ | $2.1$ | $2.0$ |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List $I$ (Compounds) | List $II$ (Reactions) |
| $A.$ $CH_3(CH_2)_3NH_2$ | $(i)$ Alkaline hydrolysis |
| $B.$ $CH_3C\equiv\,\,CH$ | $(ii)$ With KOH (alcohol) and $CHCl_3$ produces bad smell |
| $C.$ $CH_3CH_2COOCH_3$ | $(iii)$ Gives white ppt.with ammoniacal $AgNO_3$ |
| $D.$ $CH_3CH(OH)CH_3$ | $(iv)$ With Lucas reagent cloudiness appears after $5$ minutes |
$A$. has been used in spaceship
$B$. has as efficiency of $40 \%$ to produce electricity
$C$. uses aluminium as catalysts
$D$. is eco-friendly
$E$. is actually a type of Galvanic cell only