State whether litmus is a common acid-base indicator or a universal indicator.

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Solution

Litmus is a common acid-base indicator as it can only distinguish between an acid and a base.
A universal indicator is mixture of indicators and shows different colours at different concentration of H⁺ ions.

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Similar questions

What can a universal indicator indicate?
(i) Whether a solution is acidic.
(ii) Whether a solution is basic.
(iii) The pH of the solution.
(iv) Whether a base is strong or weak.
(v) Whether an acid is strong or weak.

Distinguish between:

(a) a common acid-base indicator and a universal indicator,

(b) the acidity of bases and basicity of acids,

State whether the following statements are true or false. Correct the false statements. [5 MARKS]
(a) All substances are either acidic or basic.
(b) A compound if acidic will turn all indicators red.
(c) Lime water turns red litmus blue.
(d) Common salt dissolved in water turns blue litmus red.
(e) Phenolphthalein is a natural indicator.

Q. (a) Define an indicator.
(b) Explain, why a universal indicator is preferred to acid-base indicators.

Question 13

State whether the following statements are true or false. Correct the false statements.
(a) All substances are either acidic or basic.
(b) A compound if acidic will turn all indicators red
(c) Lime water turns red litmus blue
(d) Common salt dissolved in water turns blue litmus red
(e) Phenolphthalein is a natural indicator
(f) Calamine can be used to treat ant’s sting
(g) Lemon water is basic in nature

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State whether litmus is a common acid-base indicator or a universal indicator.

Litmus is a common acid-base indicator as it can only distinguish between an acid and a base. A universal indicator is mixture of indicators and shows different colours at different concentration of H+ ions.

Litmus is a common acid-base indicator as it can only distinguish between an acid and a base.
A universal indicator is mixture of indicators and shows different colours at different concentration of H⁺ ions.