Statement-1: Diagonal relationship is shown between Be and Al.
Statement-2: Ionization potential of Be is almost the same as that of Al.

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Statement-1 is true, Statement -2 is false.

Statement-1 is True, Statement-2 is True, Statement-2
is NOT a correct explanation for Statement-1

Statement-1 is true, Statement-2 is true;
Statement-2 is a correct explanation for Statement-1

Statement-1 is false, Statement -2 is true.

answer is A.

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Detailed Solution

Diagonal relationship is shown between Be and Al. Because ionization potential of Be is almost the same as that of Al.

Moving diagonally around the contemporary periodic table reveals several parallels between the elements. This is because the electropositivity of the atom drops when one crosses a period from left to right. On the other hand, electropositivity rises as one descends the group.

These two elements operate in opposition to one another. As a result, the pieces that are situated diagonally from one another share common characteristics. In the second and third periods of the current periodic table, the diagonal connection is more pronounced.

As a result of diagonal relationship, the physical properties such as the atomic size, electronegativity, density etc. and chemical properties of compounds such as reaction with water, nitrogen, decomposition reactions etc. are similar.`

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