Q.

Which of the following is test for Borate?

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a

Turmeric paper test

b

Silver mirror test

c

Brown ring test

d

Lead acetate test

answer is A.

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Detailed Solution

Take turmeric paper in a solution of salt in dill HCl and moister this paper with NaOH, then reddish Brown color changing to Bluish black or Greenish black which confirms borate ion BO33−b) Silver mirror test is for distinguish aldehydesc) Brown ring test is for nitrate iond) Lead acetate test is for sulphide ion.
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