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Why should curd and sour substances not ...

Why should curd and sour substances not be kept in brass and copper vessels?

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### Step-by-Step Solution: 1. **Identify the Nature of Curd and Sour Substances**: - Curd and sour substances contain acids. These acids can react with certain metals. 2. **Understand the Composition of Brass and Copper**: - Brass is an alloy primarily made of copper and zinc. Copper is a metal that can react with acids. ...
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NCERT ENGLISH-ACIDS, BASES AND SALTS-Exercise
  1. You have been provided with three test tubes. One of them contains dis...

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  2. Why should curd and sour substances not be kept in brass and copper ve...

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  3. Which gas is usually liberated when an acid reacts with a metal? Illus...

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  4. Metal compound A reacts with dilute hydrochloric acid to produce effer...

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  5. Why do HCl, HNO(3), etc., show acidic characters in aqueous solutions ...

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

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

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

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

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  10. How is the concentration of hydroxide ions (OH^(–)) affected when exce...

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

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

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

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  14. Under what soil condition do you think a farmer would treat the soil o...

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

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

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

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

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

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  20. A solution turns red litmus blue, its pH is likely to be

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