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Assertion: Li and Mg shows similar chemi...

Assertion: Li and Mg shows similar chemical properties.
Reason Li and MG belongs to `2^(nd)` period.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False

D

If both Assertion & Reason are False

Text Solution

Verified by Experts

The correct Answer is:
C
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Assertion: Elements belonging to the same group show similarity in chemical properties. Reason: Elements of the same group have same number of valence electrons.

Assertion: Chlorides of Li, Be and Mg are covalent in nature Reason: Li, Be and Mg have large cationic size in the s-block elements

ALLEN-S-BLOCK ELEMENTS -EXERCISE
  1. A wire of an alkaline earth metal X, burnt in air and dipped in water,...

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  2. Which of the following statement is correct for s-block elements:

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  3. One element which is used in flash light in photography, when heated w...

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  4. The s-block hydride with covalent polymeric structure are

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  5. Assertion: Na(2)O(2) is coloured and paramagnetic Reason: Na(2)O(2) ...

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  6. Assertion: KHCO(3) can not be obtained by solvay process. Reason: KH...

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  7. Assertion: Mg can bum in the atmosphere of N(2). Reason: Mg reacts w...

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  8. Assertion: Li(2)SO(4) do not form double salt like alum. Reason: Ato...

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  9. Assertion: Li and Mg shows similar chemical properties. Reason Li an...

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  10. Assertion: NaCI when exposed in air it becomes wet. Reason: NaCI con...

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  11. Assertion: Lithium is most reducing element. Reason: IP of lithium i...

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  12. Assertion: Lithium is the weakest reducing agent among alkali metals. ...

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  13. Assertion: When cement is mixed with water and left as such, it become...

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  14. Assertion: Beryllium is most reducing s-block element Reason: Hydrat...

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  15. Assertion: Halides of Be dissolve in organic solvents Reason: Atomic...

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  16. Assertion: Be has complex formation tendency Reason: Be is s-block e...

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  17. Assertion: Be exhibit photoelectric effect. Reason: Be has least IP ...

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  18. Assertion: In Down's process CaCI(2) and NaF is added with fused NaCI ...

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  19. Assertion: Chlorides of Li, Be and Mg are covalent in nature Reason:...

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  20. Assertion: Barium is not required for normal biological function in hu...

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