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Food Storage and Preservation

Vinegar used ...

Question

Vinegar used as preservative for pickles, is _____ % aqueous solution of acetic acid.

A

1 to 2

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B

5 to 8

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C

25 to 30

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D

100

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Solution

The correct option is D 5 to 8
Vinegar is a preservative used in pickles. Vinegar is sour because it's an aqueous solution of acetic acid produced from ethanol fermentation.
Vinegar is made either by slow fermentation or fast fermentation process. Longer fermentation periods are widely used as it helps in the collection of non-toxic part of acetic acid bacteria. Acetic acid is present in 5 to 8 percent by volume.
Hence, option B is correct.

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Similar questions

Vinegar is an acid with its key ingredient, acetic acid. It is widely used for food preservation and cooking. The acetic concentration for table vinegar is typically

5 %

whereas higher concentration upto

18 %

is used as preservative. The word "vinegar" is derived from vin aigre, meaning "sour wine".

A table vinegar sample contains

5 %

(mass/mass) of acetic acid.

10 m L

of the above sample should be diluted to prepare

0.10 M

acetic acid solution. (density

1.05 g m L^{- 1}

, Molar mass of

C H_{3} C O O H - 60.0 g m o l^{- 1}

Q. Question 19
Vinegar is a solution of
(a) 50% – 60% acetic acid in alcohol
(b) 5% – 8% acetic acid in alcohol
(c) 5% – 8% acetic acid in water
(d) 50% – 60% acetic acid in water

Q. ___ is added to pickles to preserve it for a long time.

Q. 10.03 g of vinegar was diluted to 100 mL and 25 mL sample was titrated with the 0.0176 M

B a (O H)_{2}

solution. 34.30 mL was required for equivalence. What is the percent of acetic acid in the vinegar?

Q. ___ is always added to pickles to preserve it for a long time.

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