MCQ
The correct order of $C -X$ bond polarity is
- A$C{H_3}Br > C{H_3}Cl > C{H_3}I$
- B$C{H_3}I > C{H_3}Br > C{H_3}Cl$
- ✓$C{H_3}Cl > C{H_3}Br > C{H_3}I$
- D$C{H_3}Cl > C{H_3}I > C{H_3}Br$
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$(I)$ $Be$ has smaller atomic radius compared to $Mg$
$(II)$ $Be$ has higher ionization enthalpy than $Al.$
$(III)$ Charge/radius ratio of $Be$ is greater than that of $Al$.
$(IV)$ Both Be and $Al$ form mainly covalent compounds.
$A +$ alkali $\rightarrow B$ (Major Product)
If $B$ is an oxoacid of phosphorus with no $P - H$ bond, then $A$ is ..... .
(Atomic number of $Zn =30,\,Ni =28$ and $Cr =24$ )
