Tag: chemicals in food

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Multiple choice chemistry chemistry in daily life food spoilage and food preservation methods of preserving food chemicals in food

Which of the following are artificial sweeteners?

  1. Sodium benzoate

  2. Saccharin

  3. Galactose

  4. Aspartame
Reveal answer Fill a bubble to check yourself
B,D Correct answer
Explanation

For diabetic patients, sugar cannot be used as a sweetening agent. Artificial sweetening agents that are non-nutritive in nature are used as substituents for sugar (specially in soft drinks). 


Examples are saccharin (500 times sweeter than sucrose) and cyclamates. Aspartame (160 times sweeter than sucrose), another artificial sweetener is the methyl ester of the dipeptide aspartyl phenylalanine.

So, the correct options are B and D.

Multiple choice chemistry chemistry in daily life food spoilage and food preservation methods of preserving food chemicals in food

Which of the following is/are examples of artificial sweetener?

  1. Sucralose

  2. Saccharin

  3. Neotame

  4. Aspartame
Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation

Artificial sweeteners are used in one of two ways. They may be used directly in commercially processed foods, or they are mixed with one or more starch-based sweeteners before sale to consumers. Artificial sweeteners are so intensely sweet that dextrose or maltodextrin, or both, must be added to dilute their intense sweetness in order to imitate the sweetness of a sugar. Artificial sweeteners can not be sold directly to consumers since only infinitesimally small amounts are required to mimic sugar’s sweet taste. All of the given compounds are artificial sweeteners.

Multiple choice evs - i methods of preserving food food spoilage and food preservation chemicals in food food chemistry


(iii) Which class of drugs is used in sleeping pills?

  1. tranquilizers

  2. Antacid

  3. Disprine

  4. Paracetamol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A tranquilliser :- refers to a drug which is designed for the treatment of anxiety, fear, tension, agitation, and disturbances of the mind, specifically to reduce states of anxiety and tension. 


It is also used in Sleeping pills.

Multiple choice chemistry chemistry in daily life food spoilage and food preservation methods of preserving food chemicals in food

On treating roll sulphur with an aqueous solution of calcium hydroxide :

  1. plastic sulphur is prepared

  2. milk of sulphur is prepared

  3. rhombic sulphur is prepared

  4. roll sulphur
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When sublimed sulfur is boiled with lime water ,the lime is removed from the precipitate by washing with dil. $ HCl $; this is known as milk of sulphur and is used for treatment of various skin orders.

Multiple choice evs - i methods of preserving food food spoilage and food preservation chemicals in food food chemistry

Some scientists believe that a chemical widely used as a preservative and a colouring agent in foods gets converted to an acid in the stomach, affects the genes and causes cancer in human beings. Identify that substance.

  1. Ferric chloride

  2. Sodium nitrite

  3. Vinegar

  4. Sulphur dioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sodium nitrite and nitrate closely are related chemicals that have been used for centuries to preserve meat. While nitrate itself is harmless, it easily converts to nitrite, which when combined with secondary-amine compounds forms nitrosamines, a powerful cancer-exacerbating chemical. This chemical reaction occurs easily during the frying process.


Multiple choice chemistry chemistry in daily life food spoilage and food preservation methods of preserving food chemicals in food

Salt is used in our food because:

  1. it makes the food tasty

  2. we sweat and lose salt

  3. it helps in production of hydrochloric acid required to digest the food

  4. it makes water absorb food particles better
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It balances the sweetness and helps suppress other flavors, such as bitterness. Salt contains the element sodium, which is an essential nutrient need by the body in Small amounts. When salt is added to processed meats, it restructures the proteins, which then act as binding and emulsifying agents.

Multiple choice evs - i methods of preserving food food spoilage and food preservation chemicals in food food chemistry

Which of the following is used as a food preservative?

  1. Citric acid

  2. Sucralose

  3. Salts of sorbic acid

  4. Ascorbic acid
Reveal answer Fill a bubble to check yourself
A,C,D Correct answer
Explanation
Citric acid is used both as a natural flavor enhancer and preservative in a variety of foods, such as jams and jellies, canned fruits and vegetables. It's also used in ice cream, fruit drinks, candy, and carbonated beverages.
Sucralose is an artificial sweetener and sugar substitute.
Sorbic acid and its salts, such as sodium sorbate, potassium sorbate, and calcium sorbate, are antimicrobial agents often used as preservatives in food and drinks to prevent the growth of mold, yeast, and fungi. In general the salts are preferred over the acid form because they are more soluble in water, but the active form is the acid.
Ascorbic acid is a popular natural ingredient preservative. It can be used as a preservative in a vast array of food products, including bread, cured meats, jams and jellies, and other sauces and spreads.
therefore option A, C and D are correct