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

Why does dry HCl gas not change the colour of the dry litmus paper?

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Dry `HCl` gas does not change the colour of dry litmus paper because it has no hydrogen ions `H^(+)` (aq) ions, in it which can impart acidic properties to it.
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LAKHMIR SINGH & MANJIT KAUR-ACID, BASES AND SALTS-Exercise
  1. Why do HCl, HNO(3), etc., show acidic characters in aqueous solutions ...

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  2. Why does an aqueous solution of an acid conduct electricity?

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  3. Why does dry HCl gas not change the colour of the dry litmus paper?

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  4. While diluting an acid, why is it recommended that the acid should be ...

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  5. How is the concentration of hydronium ions (H(3)O^(+)) affected when a...

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  6. How is the concentration of hydroxide ions (OH^(–)) affected when ex...

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  7. You have two solutions, A and B. The pH of solution A is 6 and pH of s...

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  8. What effect does the concentration of H^(+)(aq) ions have on the natur...

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  9. Do basic solutions also have H^(+)(aq) ions? If yes, then why are thes...

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  10. Under what soil conditions do you think a farmer would treat the soil ...

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  11. What is the common name of the compound CaOCl(2)?

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  12. Name the substance which on treatment with chlorine yields bleaching p...

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  13. Name the sodium compound which is used for softening hard water.

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  14. What will happen if a solution of sodium hydrocarbonate is heated? Giv...

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  15. Write an equation to show the reaction between Plaster of Paris and wa...

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  16. A solution turns blue litmus red. Its pH is likely to be:

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  17. A solution reacts with crushed egg-shells to give a gas that turns lim...

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  18. 10 mL of a solution of NaOH is found to be completely neutralised by 8...

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  19. Which one of the following types of medicines is used for treating ind...

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  20. Write word equations and then balanced equations for the reaction taki...

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