Which of the following is an indicator that does not change color to determine the nature of acid or base?

Olfactory

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Natural

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Universal

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Methyl orange

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Solution

The correct option is A Olfactory
Substances that change smell when treated with acid or a base are called as olfactory indicators.

They determine the nature of acid or base by changing smell and not color.

Option A is correct.

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Similar questions

Q. Consider the following statements :

(A) Both acids and bases change the colour of all indicators.
(B) If an indicator gives a colour change with an acid, it does not give a change with a base.
(C) If an indicator changes colour with a base, it does not change colour with an acid.
(D) Change of colour in an acid and a base depends on the type of the indicator.

Which of these statements are correct?

Q. Methyl orange is used as an indicator. It shows colour changes in acid, base and neutral substance. Tabulate your results as follows:

Indicator	Colour Change	Inference
Methyl Orange	No change	.......
	.........	Acid
	Yellow	......

State True or False. [3 MARKS]

a) Olfactory indicators respond to acid or base by change in smell.
b) When an aqueous solution of shampoo is mixed with the extract of red cabbage, the solution turns pink.
c) Methyl Orange is a natural Indicator.

Consider the following statements:

(a) Both acids and bases change colour of all indicators.

(b) If an indicator gives a colour change with an acid, it does not give a change with a base.

(d) Change of colour in an acid and a base depends on the type of the indicator.

Which of these statements are correct?

(i) All four (ii) a and d (iii) b and c (iv) only d

Q. The indicator that changes colour with a base but does not with an acid is:

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Which of the following is an indicator that does not change color to determine the nature of acid or base?

The correct option is A OlfactorySubstances that change smell when treated with acid or a base are called as olfactory indicators.They determine the nature of acid or base by changing smell and not color.Option A is correct.

The correct option is A Olfactory
Substances that change smell when treated with acid or a base are called as olfactory indicators.

They determine the nature of acid or base by changing smell and not color.

Option A is correct.