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Alkali metals impart colour to bunsen fl...

Alkali metals impart colour to bunsen flame due to 

A

low ionization energies

B

low melting points

C

thier softness

D

the presence of one electron in the outer most shell

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The correct Answer is:
A
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AAKASH SERIES-ALKALI METALS-OBJECTIVE EXERCISE - 2
  1. The alkali metal that can react differently in many reactions is

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  2. Among alkali metal salts, the lithium salts are the poorest conductors...

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  3. Alkali metals impart colour to bunsen flame due to

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  4. The one which cannot be stored in water is

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  5. Which of the following alloy is needed to make PbEt(4) ?

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  6. Which of the following has highest conductivity in aqueous solution ?

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  7. In solvay process when ammonical brine is saturated with CO(2) gas the...

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  8. E^(0) values for Cl(2), Cl^(-), I(2)^(-), Ag^(+), Ag, Na^(+), Na, Li^(...

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  9. The following are some statments about oxides of alkali metals i) Th...

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  10. The number of hydroxide ions produced by one molecule of Na(2)CO(3) on...

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  11. The cathode in middle compartment of Castner-Kellner process is

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  12. 'A' and 'B' are compounds of sodium. 'A' is thermally stable. On passi...

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  13. Sodium is heated in air at 300^(0)C to form X, X absorbs CO(2) and for...

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  14. The most basic oxide amongst the following

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  15. Alkali metals are so named because

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  16. Sodium metal preserved under kerosine. This is to prevent

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  17. Wrong reaction of the following

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  18. The following some statments about IA group elements i) The redioact...

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  19. Which of the following substances of lithium is most stable ?

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  20. When a substance 'A' reacts with water it produces combustible gas B a...

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