Name the following:
A solution used to store biological specimen.

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Solution

Preservatives are used to store the substances to delay their degradation.
Biological specimens are stored for many years in bottles filled with Formalin.
Formalin is the mixture of $(30 - 40 %)$ water in formaldehyde ( $HCHO$ ).
Hence, a solution used to store biological specimen is Formalin.

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An organic compound having the molecular formula $C_{3} H_{6} O$ can exist in the form of two isomers A and B having different functional groups. The isomer A is a liquid which is used as a solvent for nail polish. The isomer B is also a liquid. An aqueous solution of one of the lower homologues of B is used for preserving biological specimens in the laboratory
(a) What is compound A?
(b) Write the electron-dot structure of A.
(c) What is compound B?
(d) Write the electron-dot structure of B.
(e) Name the lower homologue of compound B which is used in preserving biological specimens.

Name the following:

The solution used for storing biological specimen

Q. Which of the following organic compound is used to preserve biological specimen?

Q. Which of the following used as a preservative for biological specimens?

Formalin (a solution of formaldehyde in water) is used for preserving biological specimens. Identify the incorrect statement:

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Name the following:A solution used to store biological specimen.

Preservatives are used to store the substances to delay their degradation.Biological specimens are stored for many years in bottles filled with Formalin.Formalin is the mixture of (30-40%) water in formaldehyde (HCHO).Hence, a solution used to store biological specimen is Formalin.

Name the following:
A solution used to store biological specimen.

Preservatives are used to store the substances to delay their degradation.
Biological specimens are stored for many years in bottles filled with Formalin.
Formalin is the mixture of $(30 - 40 %)$ water in formaldehyde ( $HCHO$ ).
Hence, a solution used to store biological specimen is Formalin.