MCQ
Among the structure shown below, which has lowest potential energy ?
- ✓

- B

- C

- D







Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$^{200}X \,:\, 90\%$ $^{199}X\, :\, 8.0\%$ $^{202}X\, :\, 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$
$BF _{3}+ NaH \stackrel{450 K }{\longrightarrow} A + NaF$
$A + NMe _{3} \rightarrow B$