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Chemistry
Formalin is a:
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Q. Formalin is a:
J & K CET
J & K CET 2000
A
$100 \%$ solution of $H C H O$
B
$40 \%$ solution of $H C H O$
C
$60 \%$ solution of $CH _{3} CHO$
D
$40 \%$ solution of $CH _{3} CHO$
Solution:
$40\%$ aqueous solution of formaldehyde is called formalin. It is used to preserve biological specimens.