Question

Four mixtures are given below.​

(i) Kidney beans and chickpeas ​
(ii) Pulses and rice ​
(iii) Rice flakes and corn ​
(iv) Potato wafers and biscuits ​
Which of these can be separated by the method of winnowing?

• A. (i) and (ii)​
• B. (ii) and (iii)​
• C. (i) and (iii)​
• D. (iii) and (iv)​

Answer 1

The correct option is D (iii) and (iv)​

(i) Kidney beans and chickpeas are separated by handpicking method as both are larger.​

(ii) Pulses and rice are separated by handpicking method.​

(iii) Rice flakes and corn are separated by winnowing due to differences in their weight.​

(iv) Potato wafers and biscuits are separated by winnowing due to differences in their weight.​


So, the correct option is (d)-(iii) and (iv).​