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Chemistry
Which of the statements is not true?
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Q. Which of the statements is not true?
AIPMT
AIPMT 2012
The d-and f-Block Elements
A
On passing $H_2S$ through acidified $K_2Cr_2O_7$ solution, a milky colour is observed
27%
B
$Na _2Cr_2O_7$ is preferred over $K_2Cr_2O_7$ in volumetric analysis
45%
C
$K_2Cr_2O_7$solution in acidic medium is orange
15%
D
$K_2Cr_2O_7 $ solution becomes yellow on increasing the pH beyond 7
13%
Solution:
Because $Na _{2} Cr _{2} O _{7}$ is hygroscopic