JAMB - Chemistry (2014 - No. 17)
The colour of litmus in a neutral medium is
purple
pink
yellow
orange
설명
The colour of a neutral litmus solution is purple.
Litmus solution is made up of purple dye which is extracted from Lichens.
It is a natural Indicator and it is used to indicate the presence of an acid or a base.
A litmus paper will turn red in the presence of an acid and it turns blue in the presence of a base.