Question

1.When do we use handpicking as a method of separation ?
a) When the amount of impurities is less
b) When the size of impurities is large
c) When the impurities are insoluble in water
d) All of the above​

Answer 1

Answer:

the answer is b

Explanation:

handpicking is done when the size of the impure particles is big. for example handpicking is done to remove any unnecessary particles in rice.

Answer 2

Answer:

WHEN THE AMOUNT OF IMPURITIES IS LESS

Explanation:

(A) BECAUSE IF THE AMOUNT OF THINGS ARE LESS THEY CAN EASILY BE SORTED USING HAND PICKING METHOD FOR EXAMPLE IF YOU HAVE 8 TOYS AND YOU HAVE TO CLEAN IT YOU WILL PICK IT BY HAND AND SORT THEM.

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