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The compound (X) on heating gives a colo...

The compound (X) on heating gives a colourless gas a nd a residue that is dissolved in water to obtain (B). Excess of `CO_2` is bubbled through aqueous solution of B, C is formed. Solid (C) on heating gives back X. (B) is

A

`CaCO_(3)`

B

`Ca(OH)_(2)`

C

`Na_(2) CO_(3)`

D

`NaHCO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
b
`caCO_(3)overset(triangle)toCaO+CO_(2)`
`CaO+H_(2)OtoCa(OH)_(2)`
`Ca(OH)_(2)+CO_(2)toCaCO_(3)+H_(2)O`
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Additional Questions Solved
  1. The compound (X) on heating gives a colourless gas a nd a residue that...

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  2. Why alkali metals and alkaline earth metals are called s-block element...

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  3. Why group 1 elements are called alkali metals?

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  4. Which is the radioactive element in group 1 element? What is its half-...

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  5. Alkali metals are stored under oil. Give reason.

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  6. Name the list of elements present in alkali metal group. What is the c...

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  7. Alkali metals never found in free state in nature. Why?

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  8. The second ionization enthalpy of alkali metals are very high. Give re...

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  9. LiClO(4) is more soluble than NaClO(4). Why?

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  10. Why does lithium exhibit anomalous properties ?

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  11. Why alkali metals have high chemical reactivity? How this changes alon...

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  12. Lithium forms monoxide with oxygen whereas sodium forms peroxide with ...

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  13. Explain the action of hydrogen with alkali metals

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  14. Alkali metal hydrides are strong reducing agents. Prove this statement...

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  15. Explain the action of halogen with alkali metals

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  16. Explain the action of sodium with water.

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  17. What happens when potassium is treated with water?

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  18. LiCl is soluble in water whereas LiBrand Lil are soluble in organic so...

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  19. Li(2)CO(3) decomposes readily whereas other carbonates are not. Why?

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  20. What are the elements present in group 2? Give their general electroni...

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  21. Why group 2 elements are called alkaline earth metals?

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