MCQ
The structure of diborane contains :-
- AFour $2C -2e^-$ bonds & two $2C -3e^-$ bonds
- BTwo $(2C -2e^-)$ bonds & four $3C -2e^-$ bonds
- ✓Four $2C -2e^-$ bonds & two $3C -2e^-$ bonds
- DTwo $2C -2e^-$ bonds & two $3C -2e^-$ bonds

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$\mathrm{X} \xrightarrow[Zn/H_2O]{O_3}\mathrm{A} \xrightarrow{[Ag(NH_3)_2]^+}$$\mathrm{B}(3-\text {oxo}-\text {hexane dicarboxylic acid})$
$X$ will be

