Three different substances were taken and tested with litmus paper. The results are given below. Based on the results answer the questions 21 to 26.

Substance/Litmus X Y Z
Red Litmus Turns blue No change No change
Blue Litmus No change Turns red No change
What could be the substance Y?

Acid

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Base

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Water

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Salt

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Solution

The correct option is A Acid
Litmus paper is a natural indicator which changes red in acids and blue in bases. Compounds that do not affect the color of litmus papers are described as neutral.When litmus paper turns red then the substance is acid.

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Similar questions

Q. Two test tubes contain different solutions and are labelled as A and B. The table below shows the observations made when red and blue litmus papers were dipped in these test tubes.
Analyse the table and determine the solution A and B.

	Test tube A	Test tube B
Red litmus	No change	Turns blue
Blue litmus	Turns red	No change

Q. Match the following substances with their effect on litmus paper. (Note: More than one substance can show same litmus test)

Substance	Litmus test
Lime water	(i) Blue litmus to red
Vinegar	(ii) Red litmus to blue
Common salt	(iii) No colour change
Ammonium hydroxide

Q. A metal was burnt in air. The Substance formed was dissolved in water and tested with blue and red litmus paper. What result do you expect?

Question 3 (d)
Pragya tested the solubility of three different substances at different temperatures and collected the data as given below (results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution).

d. What is the effect of change of temperature on the solubility of a salt?

Q. Which of the following substances change red litmus paper to blue?

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Substance/Litmus	X	Y	Z
Red Litmus	Turns blue	No change	No change
Blue Litmus	No change	Turns red	No change

Three different substances were taken and tested with litmus paper. The results are given below. Based on the results answer the questions 21 to 26.Substance/LitmusXYZRed LitmusTurns blueNo changeNo changeBlue LitmusNo changeTurns redNo changeWhat could be the substance Y?

The correct option is A AcidLitmus paper is a natural indicator which changes red in acids and blue in bases. Compounds that do not affect the color of litmus papers are described as neutral.When litmus paper turns red then the substance is acid.

Three different substances were taken and tested with litmus paper. The results are given below. Based on the results answer the questions 21 to 26.

Substance/Litmus X Y Z
Red Litmus Turns blue No change No change
Blue Litmus No change Turns red No change
What could be the substance Y?

The correct option is A Acid
Litmus paper is a natural indicator which changes red in acids and blue in bases. Compounds that do not affect the color of litmus papers are described as neutral.When litmus paper turns red then the substance is acid.