K_2Cr_2O_7 is preferred to Na_2Cr_2O_7 for us | vedclass

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(A) $K_2Cr_2O_7$ is generally preferred over $Na_2Cr_2O_7$ in volumetric analysis because $Na_2Cr_2O_7$ is hygroscopic in nature.Due to its hygroscopi

Vedclass · Accepted Answer

$Na_2Cr_2O_7$ is hygroscopic while $K_2Cr_2O_7$ is not.

Vedclass · Answer

(A) $K_2Cr_2O_7$ is generally preferred over $Na_2Cr_2O_7$ in volumetric analysis because $Na_2Cr_2O_7$ is hygroscopic in nature.Due to its hygroscopic nature,it is difficult to weigh it accurately to prepare a standard solution.On the other hand,$K_2Cr_2O_7$ is not hygroscopic,which makes it suitable as a primary standard for preparing standard solutions.

$K_2Cr_2O_7$ is preferred to $Na_2Cr_2O_7$ for use in volumetric analysis as a primary standard because:

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