S Block Elements Question 66
Question: A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is:
Options:
A) $ Na_2CO_3 $
B) $ KNO_3 $
C) $ K_2CO_3 $
D) $ Cu{{(OH)}_2} $
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Answer:
Correct Answer: C
Solution:
[c] Violet colour to flame is characteristic of potassium. Also aqueous solution of $ K_2CO_3 $ is alkaline.
BETA
