Which of the following is not a property of alkaline gas?

pH is greater than 7

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Accepts proton

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Changes litmus paper red

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None of the above

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Solution

The correct option is C Changes litmus paper red
Alkaline gases are any gaseous compounds that form an alkali (or basic) solution with a pH greater than 7 when dissolved in water. It accepts a proton. Litmus paper is made from dyes derived from
lichens; it is water-soluble, meaning it can be fully dissolved in water. Acids turn blue litmus paper red, and bases turn red litmus paper blue.

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Similar questions

Q. Which of the following indicate(s) a basic solution?
i. Litmus paper turns blue
ii. Phenolphthalein turns pink
iii. Hydronium ion concentration is greater than hydroxide ion concentration

Q. In alkaline solution, the litmus paper turns from :

Read the following statements

(i) When a red litmus paper is dipped into reaction mixture of a saponification reaction, it turns blue and the reaction is exothermic.

(ii) When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is exothermic

(iii) When a red litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.

(iv) When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.

Which of the above statements are correct

Q. Read the following statements:
I. When a red litmus paper is dipped into reaction mixture of a saponification reaction, it turns blue and the reaction is exothermic.
II. When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is exothermic.
III. When a red litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.
IV. When a blue litmus paper is dipped into reaction mixture of a saponification reaction, its colour does not change and the reaction is endothermic.
Which of the above statements are correct?

When blue litmus paper is dipped into the water, the colour of litmus paper remains same. Similarly, when a red litmus paper is dipped into the water, the colour remains same. By the above observation, we can conclude that:

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