$A, B$,and $C$ are hydroxy-compounds of the elements $X, Y$,and $Z$ respectively. $X, Y$,and $Z$ are in the same period of the periodic table. $A$ gives an aqueous solution of $pH < 7$. $B$ reacts with both strong acids and strong alkalis. $C$ gives an aqueous solution which is strongly alkaline.
Which of the following statements is / are true?
$I$: The three elements are metals.
$II$: The electronegativities decrease from $X$ to $Y$ to $Z$.
$III$: The atomic radius decreases in the order $X, Y$,and $Z$.
$IV$: $X, Y$,and $Z$ could be phosphorus,aluminium,and sodium respectively.
Which of the following statements is / are true?
$I$: The three elements are metals.
$II$: The electronegativities decrease from $X$ to $Y$ to $Z$.
$III$: The atomic radius decreases in the order $X, Y$,and $Z$.
$IV$: $X, Y$,and $Z$ could be phosphorus,aluminium,and sodium respectively.
- A$I, II, III$ only correct
- B$I, III$ only correct
- C$II, IV$ only correct
- D$II, III, IV$ only correct
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Similar Questions
As we go from left to right in period $2$ of the periodic table,the gram atomic volume of the elements:
Easy
View SolutionCompare the ionization enthalpy and electron gain enthalpy values of the elements given below:
Element Description Element $\Delta_{i}H_1$ $\Delta_{i}H_2$ $\Delta_{eg}H$ $(i)$ Most reactive non-metal $(A)$ $419$ $3051$ $-48$ $(ii)$ Most reactive metal $(B)$ $1681$ $3374$ $-328$ $(iii)$ Least reactive element $(C)$ $738$ $1451$ $-40$ $(iv)$ Metal forming dihalide $(D)$ $2372$ $5251$ $+48$
| Element Description | Element | $\Delta_{i}H_1$ | $\Delta_{i}H_2$ | $\Delta_{eg}H$ |
| $(i)$ Most reactive non-metal | $(A)$ | $419$ | $3051$ | $-48$ |
| $(ii)$ Most reactive metal | $(B)$ | $1681$ | $3374$ | $-328$ |
| $(iii)$ Least reactive element | $(C)$ | $738$ | $1451$ | $-40$ |
| $(iv)$ Metal forming dihalide | $(D)$ | $2372$ | $5251$ | $+48$ |
Medium
View SolutionGiven below are two statements:
Statement-$I$: The correct order in terms of atomic/ionic radii is $Al > Mg > Mg^{2+} > Al^{3+}$.
Statement-$II$: The correct order in terms of the magnitude of electron gain enthalpy is $Cl > Br > S > O$.
In the light of the above statements, choose the correct answer from the options given below:
Statement-$I$: The correct order in terms of atomic/ionic radii is $Al > Mg > Mg^{2+} > Al^{3+}$.
Statement-$II$: The correct order in terms of the magnitude of electron gain enthalpy is $Cl > Br > S > O$.
In the light of the above statements, choose the correct answer from the options given below:
DifficultJEE MAIN 2026
View SolutionWhich of the following statements is not correct?
Medium
View SolutionChoose the correct option regarding the following statements:
Statement-$1$: Nitrogen has lesser electron gain enthalpy than oxygen.
Statement-$2$: Oxygen has lesser ionization enthalpy than nitrogen.
Statement-$1$: Nitrogen has lesser electron gain enthalpy than oxygen.
Statement-$2$: Oxygen has lesser ionization enthalpy than nitrogen.
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