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(B) From the periodic table segment:$D$ is $B$ $(Z=5)$,$H$ is $C$ $(Z=6)$$E$ is $Al$ $(Z=13)$,$G$ is $Si$ $(Z=14)$$A$ is $Zn$ $(Z=30)$,$F$ is $Ga$ $(Z

Vedclass · Accepted Answer

The difference in $Z_{eff}$ between elements $E$ and $F$ is $1.5$.

Vedclass · Answer

(B) From the periodic table segment:$D$ is $B$ $(Z=5)$,$H$ is $C$ $(Z=6)$$E$ is $Al$ $(Z=13)$,$G$ is $Si$ $(Z=14)$$A$ is $Zn$ $(Z=30)$,$F$ is $Ga$ $(Z=31)$$C$ is $Cd$ ($Z=48$ is given,so $C$ is $Hg$,$Z=80$)Analysis of statements:$A$ $(ZnO)$ and $E$ $(Al_2O_3)$ are indeed amphoteric. (Correct)$Z_{eff}$ for $Al$ $(Z=13)$ is $3.5$ and for $Ga$ $(Z=31)$ is $4.5$ (using Slater's rule),difference is $1.0$,not $1.5$. (Incorrect)$G$ $(SiO_2)$ and $H$ $(CO_2)$ are acidic in higher oxidation states. (Correct)$H$ $(C)$ forms $CO$ (neutral oxide) by dehydration of $HCOOH$ with conc. $H_2SO_4$. (Correct)Thus,the incorrect statement is $B$.

Based on the provided periodic table segment,identify the incorrect statement.

Similar Questions

Which property decreases from left to right across the periodic table and increases from top to bottom?
$(i)$ Atomic radius
$(ii)$ Electronegativity
$(iii)$ Ionisation energy
$(iv)$ Metallic character

In what properties do the first elements of a group differ from the subsequent elements of the same group?

Which of the following statements is incorrect?

Which of the following statements is correct?

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