The chemical formula of formic acid is…
a) HCOH
b) HCOOH
c) COH
d) HOC
Increasing acidity when pH………7.
a) equal
b) greater
c) less
d) none of these
The pH of stomach acid is ranges from……… to………
a) 11.0 _____12.0
b) 11.0 _____11.5
c) 11.0 _____15.0
d) 1.0 _____3.0
Which one is stomach acid………
a) HOC
b) H3O
c) HCl
d) HC
The pH value of detergent solution is approximately………
a) 9
b) 10
c) 11
d) 12
Tomato is acidic b/c its pH value is less than from ………
a) 6
b) 7
c) 8
d) 9
