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A solution turns red litmus blue, its pH...

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

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1

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4

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5

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10

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To determine the pH of a solution that turns red litmus paper blue, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Litmus as an Indicator**: - Litmus is a natural indicator that changes color based on the acidity or basicity of a solution. - Red litmus paper turns blue in the presence of a base. ...
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Select the word/words from the given list required to complete the following statements. Use one word only once and do not copy the complete statement. [ammonia, carbonate, ammonium, carbon dioxide, hydrogen, hydronium, hydroxide, salt, water, precipitate] (i) A solution M turns blue litmus red, therefore, it must contain (a) ____ ions. Another solution O turns red litmus blue, hence, it must contain (b)____ ions. (ii) When solutions M and O are mixed, the product will be ( c) _____ and (d) ______ . (iii) If a piece of magnesium was put into solution M (e) ___ gas would evolve.

State why an aq. solution of NH_(3) i] turns red litmus blue ii] is a weak base and a weak electrolyte.

If a solution changes red litmus blue, what can you say about its pH value, less than 7 or greater than 7?

An aqueous solution turns red litmus paper to blue. Excess addition of which of the following solution would reverse the change?

Complete the blanks from the list given: Ammonia, Ammonium, Carbonate, Carbon dioxide, Hydrogen, Hydronium, Hydroxide, Precipitate, Salt, Water. A solution X turns blue litmus red, so it must contain (i) _____ ions, another solution Y turns red litmus blue and therefore, must contain (ii) ______ ions. When solutions X & Y are mixed together, the products will be a (iii) _____ and (iv) ______ If a piece of magnesium were put into solution X, (v) ______gas would be evolved.

From the list given below, select the word(s) required to correctly complete blanks (i) to (v) in the following passage: [ammonia, ammonium, carbonate, carbon dioxide, hydrogen, hydronium, hydroxide, precipitate, salt, water.] A solution X turns blue litmus red, so it must contain (i) _____ ions, another solution Y turns red litmus blue and therefore, must contain (ii) ______ ions. When solutions X and Y are mixed together, the products will be a (iii) _____ and (iv) ____. If a piece of magnesium were put into solution X, (v) _____ gas would be evolved.

From the list given below, select the word(s) required to correctly complete blanks (i) to (ii) in the following passage. The words from the list are to be used only once. Write the answers as (a) (i), (ii), (iii). Do not copy the passage. [ammonia, ammonium, carbonate, carbon dioxide, hydrogen, hydronium, hydroxide, precipitate, salt, water): (i) A solution M turns blue litmus red, so it must contain (i) ....................... ions, another solution O turns red litmus blue and hence, must contain (ii) ..................... ions. (ii) When solutions M and O are mixed together, the products will be (iii) .......... and (iv) ····················· (iii) If a piece of magnesium was put into a solution M, (v) ..................... gas would be evolved.

From the list given below, select the word(s) required to correctly complete blanb (I) to (v) in the following passage : ammonia, ammonium carbonate, carbon dioxide, hydrogen, hydronium, hydroxide, precipitate, salt, water. A solution X turns blue litmus red, so it must contain : (i) ....................... ions, another solution Y turns red litmus blue and therefore, must contain (ii) . . . . . . . . . . .. . . . . . ions. When solutions X and Y are mixed together, the products will be a (iii) . . .. . . . . . . . and (iv) . . . . . . . . . . . . . . . . . . . . . If a piece of magnesium were put into solution X, (v) ...... ............. .. gas would be evolved. (Note : Words chosen from the list are to be used only once. Write the answers as (a) (i), (ii) (iii) and so on. Do not copy the passage.)

Of the following what is the pH of a solution which turns red litmus blue? 2 4 6 8

An element reacts with oxygen to form an oxide which dissolves in dilute hydrochloric acid. The oxide formed turns a solution of red litmus blue. State two reasons to support your answer.

NCERT ENGLISH-ACIDS, BASES AND SALTS-Exercise
  1. What is the common name of the compound CaOCl(2)?

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

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

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

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

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

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

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

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

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

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  11. Compounds such as alcohols and glucose also contain hydrogen but are n...

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  12. Why does distilled water not conduct electricity, whereas rain water d...

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  13. Why do acids not show acidic behaviour in the absence of water?

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  14. Five solutions A,B,C,D and E when tested with universal indicator show...

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  15. Equal lengths of magnesium ribbons are taken in test tubes A and B. Hy...

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  16. Fresh milk has a pH of 6. How do you think the pH will change as it tu...

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  17. A milkman adds a very small amount of baking soda to fresh milk. (a)...

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  18. Plaster of Paris should be stored in a moisture-proof container. Expla...

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  19. What is a neutralisation reaction? Give two examples.

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  20. Give two important uses of washing soda and baking soda.

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