Subject :NSO Class : Class 6
A few statements about centrifugation method are given :
I. The mixture containing very small suspended particles is rotated at a high speed in a centrifuge machine.
II. The denser particles stay at the top.
III. The method is used to separate water from wet clothes in a washing machine.
IV. The method can be used in laboratories for separating plasma and platelets.
The correct statements are
A I and IV only
B I, II and III only
C II, III and IV only
D I, III and IV only
Ans 1:
Class : Class 6
centrifugation is a process in which a substance is spun at a very high speed to separate minute particles. For eg. Blood is spun at a high speed to separate particles such as red and white blood cells, plasma platelets, and plasma.
Ans 2:
Class : Class 6
the answer is A.
Ans 3:
Class : Class 8
Ans 4:
Class : Class 9
What is centrifugation
Ans 5:
Class : Class 6
The answer is A