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Chemistry
Which of the following statements is false ?
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Q. Which of the following statements is false ?
JEE Main
JEE Main 2015
The d-and f-Block Elements
A
$CrO^{2-}_{4}$ is tetrahedral in shape
15%
B
$Cr_2O^{2-}_{7}$ has a $Cr-O -Cr$ bond
9%
C
$Na_2Cr_2O_7$ is a primary standard in volumetry
37%
D
$Na_2Cr_2O_7$ is less soluble than $K_2Cr_2O_7$
39%
Solution:
$Na _{2} Cr _{2} O _{7}$ is more soluble than $K _{2} Cr _{2} O _{r}$