Acid-Base Indicators
Acid-Base Indicators: Overview
This topic covers concepts such as Acid-Base Indicators, Litmus, Colour of Litmus in Acidic Medium, Colour of Litmus in Basic Medium, Colour of Litmus in Neutral Solution, Olfactory Indicators, Effect of Acids and Bases on Olfactory Indicators, etc.
Important Questions on Acid-Base Indicators
The colour of phenolphthalein indicator in basic solution is:
Which of the following indicators is an olfactory indicator?
When moist litmus paper is placed in a test tube of this gas, it turns red.
A diatomic gas that turns moist litmus paper from blue to red. (chlorine/hydrogen)
A gas which turns moist red litmus paper blue.
What is the effect of dilute hydrochloric acid on the colour of the red litmus indicator?
What is the effect of dilute hydrochloric acid on the colour of the blue litmus indicator:
The sense of smell is detected by the _____ receptors.
_____ are the substances that give different colour in acidic or basic solutions.
_____ are the compounds that give hydroxide ion in water solution.
The substances whose odour changes in the acidic or basic media are known as _____ indicators.
The colour of methyl orange indicator in acidic medium is
Which of the following is not a naturally occuring indicator?
Which acid do tomatoes have?
Indigo Carmine is a pH indicator that changes from blue to yellow for bases.
Methyl orange as pH indicator turns to _____ colour for bases.
In acidic conditions, blue litmus turns to red in colour.
What will be the colour of litmus in an aqueous solution of ammonium chloride salt?
Acids produce ______ ions in solution, which are responsible for their ____ properties.
Dry gas does not change the colour of dry litmus paper.
The above statement is:
