Question

Which of the following methods is used to remove bran from wheat flour before making dough?

• A. Sieving
• B. Magnetic separation
• C. Handpicking
• D. Filtration

Answer 1

The correct option is A

Sieving

Explanation for correct option:
(A) Sieving

• The method of using a sieve to separate undesirable components from a mixture is called sieving.
• The method of separating the components of a mixture if they differ in size.
• We use this method to remove bran from wheat flour because the size of components differs from each other and flour can be sieved easily and bran can be separated.

Explanation for the incorrect options:
(B) Magnetic separation

• The method of using a magnet to separate magnetic components from the mixture is called magnetic separation.
• In the magnetic separation method, one of the components should have a magnetic property.

(C) Handpicking

• The separation technique involves manually removing undesired impurities from a mixture.
• It basically entails choosing out substances and separating them from others by hand.
• When things differ in color, shape, or weight, the handpicking approach might be applied.

(D) Filtration

• A method for separating an insoluble solid from a liquid using filter paper.
• When a mixture of sand and water is filtered the sand stays behind in the filter paper the water passes through the filter paper.

Hence option (A) is correct.