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When sodium is added in scanty water, it...

When sodium is added in scanty water, it catches fire. In this process which one of the following burns ?

A

Na

B

`H_(2)O`

C

`H_(2)`

D

NaOH

Text Solution

Verified by Experts

The correct Answer is:
C
`H_(2)` gas produced during the reaction which burns in process.
`2Na+2H_(2)O to 2NaOH+H_(2)`
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NCERT FINGERTIPS-THE S-BLOCK ELEMENTS-Assertion And Reason
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  3. Assertion: Lithium resembles magnesium diagonally placed in next group...

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  4. Assertion: Alkali metals are obtained by electrolysis of molten salt a...

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  5. Assertion: Lithium salts are mostly hydrated. Reason: The hydration ...

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  6. Assertion: The melting and boiling points of the alkali metals are low...

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  7. Assertion: Lithium fluoride is most covalent in nature. Reason: Smal...

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  8. Assertion: The carbonate of lithium decomposes easily on heating. Re...

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  9. Assertion : Super-oxides of alkali metals are para-magnetic. Reason ...

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  10. Assertion: Be and Mg do not impat characteristic colour to the flame. ...

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  11. Assertion: The fluorides of alkaline earth metals are relatively less ...

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  12. Assertion: Be is readily attacked by acids. Reason: Be shows diagona...

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  13. Assertion: Alkaline earth metal oxides are quite stable to heat. Rea...

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