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Assertion: Among hydroxides of alkali me...

Assertion: Among hydroxides of alkali metals, LiOH is the weakest base.
Reason: Among alkali metals, lithium has the highest ionisation energy .

A

If both assertion and reason are true and the reason is the correct explanation of assertion

B

If both assertion and reason are true and the reason is not the correct explanation of assertion

C

If assertion is false but reason is true

D

If assertion is true but the reason is false

Text Solution

Verified by Experts

The correct Answer is:
B
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VK JAISWAL-s-BLOCK ELEMENTS-ASSERTION-REASON TYPE QUESTIONS
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  2. Assertion: M.P of BeCl(2) is less than that of MgCl(2), but reverse is...

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  3. Which is the strongest reducing agent among alkali metals?

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

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  5. Assertion: BeCi(2) cannot be easily hydrolysed. Reason: BeCl(2) is el...

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  6. Assertion: K^(+) and NH(4)^(+) ions have many similarities in their te...

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  7. Assertion: Alums are crystalline double salts, which are soluble in wa...

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  8. Assertion: Mg gets oxidised when heated in CO(2) atmosphere. Reason:...

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  9. Assertion: Mg^(2+)+ZnSO(4) to MgSO(4)+Zn^(2+) Reason: More active me...

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  10. Assertion: Li resembles with Mg in properties Reason: Li^(+) has alm...

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  11. Assertion: Be(OH)(2) dissolves in excess NaOH solution. Reason: Be(O...

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  12. Assertion: SO(4)^(2-) is estimated as BaSO(4) but not as MgSO(4)

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  13. Assertion: alkali earth metals have lower densities than alkali metals...

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  14. Assertion: Magnesium does not impact characteristic colour to the buns...

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  15. Assertion: Among hydroxides of alkali metals, LiOH is the weakest base...

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  16. Assertion: BaSO(4) is insoluble in water. Reason: Lattice energy of ...

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  17. Assertion: CsI is sparingly soluble in water Reason: Hydration ener...

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  18. Assertion : Potassium is not obtained by the electrolysis of fused KCl...

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  19. Assertion: M.P of BeCl(2) is less than that of MgCl(2), but reverse is...

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  20. Assertion: Li is most strong reducing agent among alkali metals Reas...

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