What percentage concentration of an aqueous s | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Formalin is a saturated aqueous solution of formaldehyde gas. It typically contains $37 \%$ to $40 \%$ formaldehyde by mass or volume,but in many

Vedclass · Accepted Answer

$90 \%$

Vedclass · Answer

(D) Formalin is a saturated aqueous solution of formaldehyde gas. It typically contains $37 \%$ to $40 \%$ formaldehyde by mass or volume,but in many educational contexts,it is often referred to as a $40 \%$ solution. Among the given options,the most accurate representation of a standard commercial formalin solution is often cited in the range of $37-40 \%$. However,if we look at the provided options,there seems to be a discrepancy with standard textbook values. Given the context of common biology laboratory reagents,formalin is defined as a $40 \%$ aqueous solution of formaldehyde. Since $40 \%$ is not explicitly listed as a single choice,and considering the options provided,the question might be referring to a specific dilution or a typo in the source. Re-evaluating the standard definition,formalin is $37-40 \%$ formaldehyde. If this is a multiple-choice question where one must be selected,please note that none of the options perfectly match the standard $40 \%$ definition. Assuming a potential typo in the question options,$40 \%$ is the correct scientific answer.

What percentage concentration of an aqueous solution of formaldehyde is known as formalin?

Similar Questions

What happens when ethyl alcohol and acetic acid react with each other in the presence of conc. $H_{2}SO_{4}$?

Define oxidising agents. Explain its role in the oxidation of alcohols to acids. Write the oxidation reaction of ethanol.

In the presence of which enzyme does the fermentation of an aqueous solution of sugar or molasses produce glucose and fructose?

Why are homologous series of carbon compounds so called? Write the chemical formula of two consecutive members of a homologous series and state the part of these compounds that determines their $(i)$ physical properties,and (ii) chemical properties.

What is used to make vinegar?

Vedclass Test Series

Exam Paper Generator

Online Exam Module