A, B,and C are hydroxy-compounds of the eleme | vedclass

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(C) is acidic,so $X$ is a non-metal (e.g.,$P$).$B$ is amphoteric,so $Y$ is an amphoteric element (e.g.,$Al$).$C$ is strongly alkaline,so $Z$ is an alk

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$II, IV$ only correct

Vedclass · Answer

(C) is acidic,so $X$ is a non-metal (e.g.,$P$).$B$ is amphoteric,so $Y$ is an amphoteric element (e.g.,$Al$).$C$ is strongly alkaline,so $Z$ is an alkali metal (e.g.,$Na$).Since $X, Y, Z$ are in the same period,the order of atomic number is $Z $I$: False,$X$ is a non-metal.$II$: Electronegativity increases from left to right,so it decreases from $X$ to $Y$ to $Z$. This is true.$III$: Atomic radius decreases from left to right,so the order is $Z > Y > X$. The statement says $X, Y, Z$ decreases,which is false.$IV$: $X$ (Phosphorus),$Y$ (Aluminium),$Z$ (Sodium) is a valid sequence. This is true.Therefore,$II$ and $IV$ are correct.

List-$A$	List-$B$
$(1)$ $He$	$(A)$ High electron gain enthalpy
$(2)$ $Cl$	$(B)$ Electropositive element
$(3)$ $Ca$	$(C)$ Strong reducing agent
$(4)$ $Li$	$(D)$ High ionization enthalpy

List – $I$ (Element, Atomic number)	List – $II$ (Position in periodic table)
$(a)$ $Ra$ – $88$	$(i)$ $4^{th}$ period, $13^{th}$ group
$(b)$ $Ga$ – $31$	(ii) $6^{th}$ period, $6^{th}$ group
$(c)$ $W$ – $74$	(iii) $5^{th}$ period, $10^{th}$ group
$(d)$ $Pd$ – $46$	(iv) $7^{th}$ period, $2^{nd}$ group

Similar Questions

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

Match the items in List-$A$ with the items in List-$B$.

List-$A$ List-$B$

$(1)$ $He$ $(A)$ High electron gain enthalpy

$(2)$ $Cl$ $(B)$ Electropositive element

$(3)$ $Ca$ $(C)$ Strong reducing agent

$(4)$ $Li$ $(D)$ High ionization enthalpy

Represent different types of periodic properties in the periodic table.

The incorrect order of properties for the following is:

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