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Cs^+ ion imparts violet colour to the fl...

`Cs^+` ion imparts violet colour to the flame. This is due to the fact that the emitted radiations have:

A

High energy

B

Low energy

C

Longer wavelength

D

None of three

Text Solution

Verified by Experts

The correct Answer is:
B
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MBD PUBLICATION-S- BLOCK ELEMENTS [ALKALI AND ALKALINE EARTH METALS]-QUESTION TYPE
  1. Alkali metals are generally extracted by

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  2. Which is correct statement for CsBr3 ?

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  3. Cs^+ ion imparts violet colour to the flame. This is due to the fact t...

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  4. The electronic configuration of a metal M is 1s^2 2s^2 2p^6 3s^1. The ...

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  5. Which has the maximum m.p. ?

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  6. Sodium nitrate decomposes above 800^@C to give

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  7. The stability of the alkali metal chlorides listed below follows the o...

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  8. Which has the maximum electropositive character ?

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  9. Which is formed with lithium is heated in air?

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  10. Which of the following electronic comfigurations has the lowest ionosa...

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  11. Lithium is the strongest reducing agent among the alkali metals due to...

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  12. Which alkali metal ion has lowest mobility in aqueous solution ?

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  13. In NaCl, the Cl^- ions occupy the place in a fashion of:

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  14. When sodium metal heated in dry ammonia, the compound formed is:

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  15. What types of ions are present in anhydrous mixture of KF and Hf ?

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  16. KO2 is used in oxygen cylinders in space and submarines because it

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  17. The hydroxide with least ksp value at room temperature is:

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  18. Which sulphate has the highest solubility in water ?

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  19. Which pairs represent isoelectronic species ?

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  20. Which of the following represents an alkaline earth metal on the basis...

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