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Which of the following reacts with water...

Which of the following reacts with water with high rate ?

A

Li

B

K

C

Na

D

Rb

Text Solution

Verified by Experts

The correct Answer is:
D
`2Rb+2H_(2)O to 2RbOH +H_(2)`
`overset("Li lt Na lt Ka lt Rb lt Cs")to`
As we go down the group reactivity with `H_(2)O` increases.
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ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Alkali metals)
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  3. Which of the following reacts with water with high rate ?

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  5. Which of the following metal has stable carbonates ?

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  7. The product obtained on fusion of BaSO(4) and Na(2)CO(3) is

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  8. The most stable compound is

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  9. In the Castner's process for the extration of sodium, the anode is mad...

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  10. Sodium peroxide which is a yellow solid, when exposed to air becomes w...

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  11. The metal that produces red violet colour in the non - luminous flame ...

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  12. Which one of the following on hydrolysis, gives the corresponding meta...

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  13. In the graph below, the one which present an alkali metal with the hig...

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  14. The alkali metal halide that is soluble in pyridine is

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  15. For alkali metals, which one of the following trends is incorrect ?

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  16. Choose the incorrect statement in the following

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