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What is the colour of the flame on heati...

What is the colour of the flame on heating potassium in the flame of a Bunsen burner?

A

Golden-yellow

B

Gray-white

C

Pale violet

D

Orange-red

Text Solution

Verified by Experts

The correct Answer is:
C
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -COMPETITION FILE ( MULTIPLE CHOICE QUESTION (B))
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  4. A metal on combustiion in excess air forms X.X upon hydrolysis with wa...

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  5. The correct statement(s) among I to III with respect to potassium ions...

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  6. What is the colour of the flame on heating potassium in the flame of a...

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  7. The metal nitrate that liberates NO2 on heating

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  8. Which among the following is correct for electrolysis of brine solutio...

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  10. The metal that forms nitride by reacting directly with N(2) of air , i...

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  11. The incorrect statement is :

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  12. The correct order of hydration enthalpies of alkali metal ions is:

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  13. Match the following item in column I with the corresponding items in C...

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  14. The alkaline earth metal mitrate that does not crystallise with water ...

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  15. The correct sequence of thermal stability of the following carbonates ...

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  18. The structures of beryllium chloride in the solid state and vapur phas...

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  19. Which of the following processes is used in the extractive metallurgy ...

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