Assertion :Hydrogen can be placed in both I A group and VII A group of the modern periodic table. Reason: Similarity in properties with both IA and VII A group.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Hydrogen has electronic configuration of $1 s^{1}$ .

Alkali they are metals & halogen are nonmetals but the similar property between all of them is they need just 1 electron to donate or accept or share i.e. their valency is 1 .

So hydrogen is similar to alkali and halogen nonmetals.

Hence it can be placed in either.

Option A is correct.

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Similar questions

Assertion: Be and Al have similar properties.

Reason: $B e^{2 +}$ and $A l^{3 +}$ have nearly the same charge/volume ratios and similar polarising power.

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Q. Assertion: The compressibility factor for

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Reason (R) There is a repulsion between the two bulky (- R) groups.
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