Tag: chemistry in daily life

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Questions Related to chemistry in daily life

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

Which of the following will not enhance nutritional value of food?

  1. Minerals

  2. Artificial sweeteners

  3. Vitamins

  4. Amino acids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Artificial sweeteners enhance the taste but will not enhance the nutritional value. Whereas minerals, vitamins and amino acid will increase the nutritional value as they are the important constituents of nutrition.

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

Sugar is the main source of energy as it produces energy on metabolic decomposition. But these days low calorie drinks are more popular.

  1. True

  2. False

  3. Ambiguous

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sugar does produce energy through metabolic decomposition (approximately 4 kcal/g), which is true. The popularity of low-calorie drinks is also an observable market trend. However, framing these as connected facts makes for an odd true/false question.

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

Assertion: Artificial sweeteners are added to the food to control the intake of calories.


Reason: Most of the artificial sweeteners are inert and do not metabolise in the body. 

Read the above assertion and reason and choose the correct option regarding it.

  1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

  2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

  3. Both Assertion and Reason are incorrect.

  4. Assertion is correct but Reason is incorrect.

  5. Assertion is incorrect but Reason is correct.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Artificial sweeteners are added to the food to control the intake of calories.
Most of the artificial sweeteners are inert and do not metabolise in the body.

An example includes saccharine and its salts which are life savers for countless diabetics and is of great value to people who need to control the intake of calories.

Thus, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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

It is found in phosphorus and nitrogen

  1. inorganic impurities

  2. bacteria

  3. nutrients

  4. other microbes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Nitrogen and phosphorous are nutrints that are natural parts of aquatic ecosystems.Nitrogen is also most abundant element in the air we breath nitrogen and phosphorous support the growth of a lgee and aquatic plants,which prouide food and habbit for fish and smaller organisma that line in water.







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 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 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.