You cannot predict pregnancy with litmus paper. litmus paper detect pH not HCG
Red litmus paper is used to test for acids. If the red litmus paper turns blue when dipped in a substance, it indicates the presence of an acid.
Blue litmus paper
A litmus paper is a indicator that is used to test for acids or bases
Blue litmus paper would be used and if the chemical is an acid the litmus paper would turn red.
by using an indicator like litmus paper!!!
The presence of acid can be detected by using an indicator such as litmus paper. Litmus paper turns blue litmus to red.
test for bases.
litmus paper turns blue litmus red when tested on an acid and red litmus blue when tested on a base
Litmus paper
Litmus paper
When ammonia gas is produced at the bottom of the test tube and comes in contact with the litmus paper at the mouth of the test tube, it reacts with the water on the litmus paper to form ammonium hydroxide. This reaction changes the color of the litmus paper from red to blue, indicating the presence of ammonia gas. The ammonia gas diffuses up the test tube to reach the litmus paper due to differences in concentration.
Alcohol does not significantly affect litmus paper. Litmus paper is primarily used to test for acidity or alkalinity in solutions by changing color, and alcohol does not typically cause a noticeable color change on litmus paper.