Dhars
from
DPS EAST Bangalore , Bengaluru
Subject :NSO Class : Class 7
In an experiment demonstrating the evolution of oxygen in Hydrilla, sodium bicarbonate is added to water in the experimental set-up. What would happen if all other conditions are favourable?
A Amount of oxygen evolved decreases as carbon dioxide in water is absorbed by sodium bicarbonate.
B Amount of oxygen evolved decreases as the availability of carbon dioxide increases.
C Amount of oxygen evolved increases as the availability of carbon dioxide increases.
D Amount of oxygen evolved increases as carbon dioxide in water is absorbed by sodium bicarbonate.
but why
Ans 2:
Edit Post
Ans 4:
Edit Post
Ans 7:
Edit Post
Medha Bhutani
from
Christ Academy, Bengaluru
Class : Class 9
ans is C. because of sodium bicarbonate,the plants get CO2 and perform photosynthesis and give out O2
Ans 8:
Edit Post
Anushka kumar
from
DPS paradip, odisa
Class : Class 9
it must be a. as amount of oxygen decreases and when searched... gives the same answer