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The following pair that cannot exist in ...

The following pair that cannot exist in solution is

A

NaOH and KOH

B

NaCl and KCl

C

`NaHCO_3` and NaOH

D

`Na_2CO_3` and NaOH

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-MOCK TEST 22-Example
  1. Hydrogen gas reduces which metal ion in its aqueous solution?

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  2. Hydrogen acts as a reducing agent and thus resembles

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  3. In which of the compounds, the oxidation state of hydrogen is -1

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  4. An element reacts with hydrogen to form a compound X which on treatmen...

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  5. High purity dihydrogen is obtained by electrolysing

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  6. Only temporary hardness of water is removed by

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  7. In Clark's method the chemical used to remove hardness of water is

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  8. Heavy water is

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  9. The incorrect statement about the structure of H2O2 is

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  10. The strength of "20 volume" H(2)O(2) is equal to

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  11. Which of the following elements combines directly with nitrogen to for...

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  12. The correct order of hydration enthalpies of alkali metal ions is:

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  13. The colour given to the flame by sodium salt is

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  14. The following pair that cannot exist in solution is

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  15. When NaOH is prepared in Castner-Kellner cell,the gas evolved at the a...

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  16. which of the following statements is/are incorrect?

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  17. Which of the following are thermodynamically stable?

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  18. Which is incorrect statement about lithium and magnesium?

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  19. Solvay's process is used for the manufacture of

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  20. What is formed when calcium carbide reacts with heavy water?

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