Name: Acid-base Indicators
Uploaded: 2019-07-19
Duration: 9 min 55 s
Description: This video explains indicators as a chemical species used to distinguish between acids and bases. Commonly used natural indicators and also a universal indic...

Question

Classify the substances in the following table:

Substances	Colour of red litmus	Colour of blue litmus
A	Blue	Blue
B	Red	Red
C	Red	Red
D	Red	Blue
E	Blue	Blue
F	Red	Blue

Accepted Answer

Acids turn blue litmus red but doesn't show colour change in red litmus, bases turn red litmus blue but doesn't show colour change in blue litmus and neutral substances don't show colour change in any of the indicator. Substance A and E turns red litmus blue but doesn't change the colour of blue litmus, hence these are bases.

Substance B and C turns blue litmus red but doesn't change the colour of red litmus, hence these are acids.

Substance D and F don't change the colour of either of the litmus papers hence, these are salts.

Substances Colour of red litmus Colour of blue litmus Type of substance

A Blue Blue Base

B Red Red Acid

C Red Red Acid

D Red Blue Salt

E Blue Blue Base

F Red Blue Salt

Classify the substances in the following table:

Substances Colour of red litmus Colour of blue litmus

A Blue Blue

B Red Red

C Red Red

D Red Blue

E Blue Blue

F Red Blue

Important Questions on Acids and Alkalis

Learn and Prepare for any exam you want !

Classify the substances in the following table: Substances Colour of red litmus Colour of blue litmus A Blue Blue B Red Red C Red Red D Red Blue E Blue Blue F Red Blue

Important Questions on Acids and Alkalis

Learn and Prepare for any exam you want !

Classify the substances in the following table:

Substances Colour of red litmus Colour of blue litmus

A Blue Blue

B Red Red

C Red Red

D Red Blue

E Blue Blue

F Red Blue