Food chemistry - class-XII
Description: food chemistry | |
Number of Questions: 45 | |
Created by: Tanuja Atwal | |
Tags: methods of preserving food applied chemistry chemistry petrochemicals and polymers chemistry in everyday life chemistry in daily life evs - i |
The sweeteners value of aspartame in comparison to cane sugar is:
Which of the following is not a food additive?
Name an artificial sweetener which is derivative of sucrose.
Match the column I with column II and mark the appropriate choice.
Column I | Column II | ||
---|---|---|---|
(A) | Alitame | (i) | Antihistamine |
(B) | Iodoform | (ii) | Artificial sweetener |
(C) | Prontosil | (iii) | Antibacterial agent |
(D) | Terfenadine | (iv) | Antiseptic |
Fermentation was discovered by:
Name two $\alpha$-amino acids, which form a dipeptide, which is 100 times more sweet than cane sugar?
Aspartame is unstable at cooking temperature. Where would you suggest aspartame to be used for sweetening?
Non-degradable and fat-soluble pollutant, such as DDT enters the food chain, the pollutant:
$NaCl$ is used as a food preservative and in freezing mixtures.
Which one of following is employed as a tranquilizer ?
Currency notes can be marked with an invisible ink. Thieves can be trapped because this ink
Four samples of arhar dal were taken in four test tubes with some water in each and
labelled P,Q, R and S. A few drops of the following were added to these test tubes,
water to test tube P, HCl to test tube Q, NaOH to test tube R and alcohol to test tube S.
We would be able to confirm adulteration of the dal with metanil yellow in test tubes :
A lot of controversy has been generated over the use of 'BVO' in soft drinks on the ground that it is carcinogenic (cancer-causing). What is 'BVO'?
Which of the following fibres is said to be very harmful for health?
As regards the use of international food safety standards as reference point for the dispute settlements, which one of the following does WTO collaborate with?
Which of the following is used for preservation of biological substances and food materials?
Milk can be preserved by adding a few drops of:
Match the following
1) Food preservative | a) Reserpine |
---|---|
2) Anti depressant | b) Sodium benzoate |
3) Lowers blood pressure | c) Analgesic |
4) Pain reliever | d) Tofranil |
-- | e) Sodium cyclamate |
Arrange the following in decreasing order of the sweetening capacity.
(I) Saccharin
(II) Aspartame
(III) Alitame
Full form of GFC is?
Which of the following statement is wrong about Abscisic acid :
Which of the following will not enhance nutritional value of food?
Which of the following are used as food preservative?
Sugar is the main source of energy as it produces energy on metabolic decomposition. But these days low calorie drinks are more popular.
Assertion: All chemical added to food items are called food preservatives.
Reason: All the chemicals increase the nutritive value of the food.
Assertion : Preservatives are added to food items
Reason : Preservatives inhibit the growth of microorganisms
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.
It is found in phosphorus and nitrogen
Which of the following are artificial sweeteners?
Which of the following is/are examples of artificial sweetener?
The food is kept at low temperatures in a refrigerator because it:
Vitamin C is:
On treating roll sulphur with an aqueous solution of calcium hydroxide :
The yellow in egg yolk is a coloring caused by:
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.
Salt is used in our food because:
Which of the following is used as a food preservative?
Modern oil-based paints contain oils that can dry to form strong, adhesive films by cross-linking of fatty acid chains. Some of these drying oils' are mentioned here. Can you pick the false one?
Stearic acid is.
________ act as protective agent on the surface of animals and plants.
High molecular weight alcohols are present in:
Four oils $A, B, C$ and $D$ have the following values of melting points.
(a) $258$ K (b) $273$ K (c) $295$ K (d) $303$ K
Among these, which oil is prohibited from consumption by cardiac patients?