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Cs^(+) ions impart violet colour to Buns...

`Cs^(+)` ions impart violet colour to Bunsen flame. This is due to the fact that the emitted radiations are of

A

High energy

B

Low energy

C

Longer wavelength

D

None of the three

Text Solution

Verified by Experts

The correct Answer is:
B
`Cs^(+)` ion emits radiations of low energy.
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DINESH PUBLICATION-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS )-JEE MAIN
  1. Diagonal Relationship Of Lithium With Magnesium

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  2. Alkali metals are generally extracted by electrolysis of their ores.

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  3. Cs^(+) ions impart violet colour to Bunsen flame. This is due to the f...

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  4. When dry ammonia gas is passed over heated sodium (out of contact of a...

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  5. Which of the following alkali metal ions has the lowest ionic mobility...

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  6. lithium has highest ionisation energy but is strongest reducing agent ...

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  7. Alkali metals have high oxidation potential and hence they behave as :

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  8. Based on lattice energy and other considerations which one of the foll...

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  9. The correct order of solubility of the sulphates of alkaline earth met...

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  10. Among LiCI, RbCI, BeCI(2) and MgCI(2) the compound with the greatest a...

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  11. White heavy precipitates are formed when BaCl(2) is added to a clear s...

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  12. Which will liberate hydrogen on reacting with hydrochloric acid ?

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  13. A metal X on heating in nitrogen gas gives Y,Y on treatment with H(2)O...

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  14. Formula of gypsum is CaSO(4).xH(2) and of plaster of parts is (2CaSO(4...

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  15. The substance not likely to contain CaCO(3) is:

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  16. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  17. The charge/size ratio of a cation determines its polarising power. Whi...

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  18. The set representing the correct order of ionic radius is

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  19. Which of the following on thermal decomposition yields a basic as wel ...

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  20. The correct statement for the molecule, CsI(3) is

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