MCQ
Element not showing variable oxidation state is :
- ABromine
- BIodine
- CChlorine
- ✓Fluorine
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ In $B _{2} H _{6}$, all $B - H$ bonds are equivalent.
$(B)$ In $B _{2} H _{6}$ there are four $3-$centre$-2-$electron bonds.
$(C)$ $B _{2} H _{6}$ is a Lewis acid.
$(D)$ $B _{2} H _{6}$ can be synthesized form both $BF _{3}$ and $NaBH _{4}$.
$(E)$ $B _{2} H _{6}$ is a planar molecule.
Choose the most appropriate answer from the options given below..... .
| List$-I$ | List$-II$ |
| $(I)$ $XeF_4$ | $(A)$ See-saw |
| $(II)$ $I_3^-$ | $(B)$ Tetra hedral |
| $(III)$ $XeO_2F_2$ | $(C)$ Bond angle $90^o$ |
| $(IV)$ $SO_4^{2-}$ | $(D)$ Linear |
To obtain high yields of $CH_3Cl$, the ratio of $CH_4$ to $Cl_2$ must be