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प्रश्न
From the list given below, select the word(s) required to correctly complete blanks (i) to (v) in the following passage. The words 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.
A solution M turns blue litmus red, so it must contain _______ ions; another, solution O turns red litmus blue and hence, must contain ______ ions.
Select the word/s given which are required to correctly complete the blanks.
विकल्प
ammonia
ammonium carbonate
carbon dioxide
hydrogen
hydronium
hydroxide
precipitate
salt
water
उत्तर
A solution M turns blue litmus red, so it must contain hydronium ions; another, solution O turns red litmus blue and hence, must contain hydroxide ions.
Notes
Students should refer to the answer according to their questions.
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