D And F Block Elements Question 139
Question: In acidic medium potassium dichromate acts as an oxidant according to the equation, $ Cr_2O_7^{2-}+14{{H}^{+}}+6{{e}^{-}}\to 2C{{r}^{3+}}+7H_2O $ . What is the equivalent weight of $ K_2Cr_2O_7 $ - (mol. Wt. = M)
[MP PET/PMT 1998]
Options:
A) $ M $
B) $ M/2 $
C) $ M/3 $
D) $ M/6 $
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Answer:
Correct Answer: D
Solution:
Since it accept $ 6{{e}^{-}} $ its Equivalent weight = $ \frac{M}{6} $ .
BETA
