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Assertion : Na(2)SO(4) can be used as t...

Assertion : `Na_(2)SO_(4)` can be used as the starting material for the preparation of sodium carbonate and sodium hydroxide.
Reason : Sodium hydroxide is prepared by the treatment of milk of lime with sodium carbonate.

A

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

B

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

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
b
Assertion :
`ubrace(Na_(2)SO_(4)+4C+CaCO_(3))_("Liblanc process")overset(Delta)rarrubrace(Na_(2)CO_(3)+CaS)_("black ash")+4CO`
`Na_(2)CO_(3)+Ca(OH)_(2)("milk of lime") rarr 2NaOH+CaCO_(3)`
Reason : True statement.
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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-Section B - Assertion Reasoning
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  2. Assertion : All alkali metals do not form superoxides as one of the ma...

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  4. Assertion : Potassium carbonate can be prepared by Solvay process like...

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  5. Assertion (A): BaCO(3) is more soluble in HNO(3) than in water. Reas...

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  6. Assertion : The crystalline salts of alkaline earth metals contain mor...

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  7. Assertion : Sodium bicarbonate generally precipitates normal carbonate...

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  8. Assertion : The decahydrated form of sodium carbonate on standing in a...

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  9. Assertion : Solution of sodium hydroxide can be stored in a vessel mad...

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  10. Assertion : White precipitate of BaSO(4) is insoluble in water but rea...

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  11. Assertion : The dissolution of alkali metal hydroxides in water is an ...

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

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  13. Assertion : Setting of cement is an endothermic process. Reason : Se...

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  14. Assertion : Lithium is the weakest reducing agent among the alkali met...

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  15. Assertion (A): Aqueous solution of Na(2)CO(3) is alkaline in nature. ...

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  16. Assertion : Caesium is used in photoelectric cells. Reason : Caesium...

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  17. Assertion : Berylium does not impart any characteristic colour to the ...

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  18. Assertion : Ionization energy of Be is almost the same as that of Al. ...

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  19. Assertion : BeCl(2) fumes in moist air. Reason : BeCl(2) reacts with...

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  20. Assertion : Be SO(4) and MgSO(4) are soluble in water. Reason : BaSO...

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