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Why does dry HCI gas not change the colo...

Why does dry HCI gas not change the colour on the dry litmus paper?

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MODERN PUBLICATION-ACID, BASES AND SALTS-EXERCISE
  1. Why does dry HCI gas not change the colour on the dry litmus paper?

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  2. Name the gas produced when Sodium carbonate reacts with hydrochloric a...

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  3. Name the gas produced when Magnesium carbonate reacts with hydrochlori...

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  4. Name an indicator which is red in acid solution but turns blue in basi...

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  5. Name one strong and one weak acid.

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  6. Why is cold milk helps a person in neutralising acidity in the stomach...

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  7. Give the name and formula of acid present in vinegar?

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  8. Name the acids present in Orange?

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  9. Name the acids present in Lemon?

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  10. Name the acids present in Tomatoes.

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  11. The pH of fresh milk is 6. will its pH value increase or decrease when...

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  12. An acidic solution contains……………..ions.

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  13. A basic solution contains……………..ions.

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  14. Name two acid base indicators?

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  15. The pH values of some substances are given below:(i)Apples: 5.0-6.5(ii...

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  16. What is the pH of an acid having [H^+]=10^-3M

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  17. Will the OH^- ions concentration increase or decrease if a 1M NaOH sol...

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  18. Two solutions A and B have pH of 6 and 9 respectively. Which solution ...

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  19. Four test tubes A,B,C and D contain solutions of pH 3.0, 5.0, 6.0 and ...

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  20. Four test tubes A,B,C and D contain solutions of pH 3.0, 5.0, 6.0 and ...

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  21. Which of the following have large pH values: 1M CH3COOH or 1M HCl

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