Related Questions

In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
A 15/25
B 31/50
C 11/25
D 9/50
An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is
A B or A
B AB or A
C A or O
D AB or B
Person having blood group 'B' can donate the blood to person having blood group
A A and O
B B and O
C A and AB
D B and AB
A man whose blood group is not known meet with a serious accident and needs blood transfusion immediately. Which one of the blood group mentioned below and readily available in the hospital will be safe for transfusion?
A O, Rh-
B O, Rh+
C AB, Rh-
D AB, Rh+
Filtration of blood takes place in
A Heart
B Kidney
C Liver
D Spleen
Zone refining is used for the purification of
A Au
B Ge
C Ag
D Cu
Which of the following retards the self purification of stream?
A Higher temperature
B Sunlight
C Satisfying oxygen demand
D None of the above
Muddy water is treated with alum in purification process, it is termed as :
A Emulsification
B Absorption
C Adsorption
D Coagulation
Ultra purification of a metal is done by :
A Slugging
B Zone melting
C Smelting
D Leaching
The factor responsible for purification of sewage in river is
A Hydrology
B Dissolved oxygen in water
C Temperature
D All the above

Next steps