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Orthoboric Acid

Formalin is :

Question

Formalin is :

A

a solution of fructose

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B

40

%

aq. solution of formaldehyde

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C

a dilute sucrose solution

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D

none of the above

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Solution

The correct option is B 40 $%$ aq. solution of formaldehyde
Formalin is an aqueous solution of formaldehyde.

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Q. The following successive dilutions are applied to a stock solution of 5 M sucrose (molecular weight = 342):

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