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The P^(H) of 0. 1M solution of the fo...

The `P^(H) ` of 0. 1M solution of the following compounds increases in the order

A

` NaCl lt NH_4 Cl lt NaCN lt HCl`

B

` HCl lt NH_4 Cl lt NaCl lt NaCN`

C

` Na CN lt NH_4 Cl lt NaCl lt HCl `

D

` HCl lt NaCl lt NH_4 Cl lt NaCN `

Text Solution

Verified by Experts

The correct Answer is:
B
pH of HCl = 1, pH of NaCl =7 ,
pH of `NH_4Cl lt 7 , pH ` of NaCN ` gt 7`
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AAKASH SERIES-IONIC EQUILIBRIUM -LECTURE SHEET (EXERCISE -III LEVEL -I (MAIN ) (Straight Objective Type Questions))
  1. An acidic buffer contains equal concentration of acid and salt . The d...

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  2. K(a) for HCN is 5 xx 10^(-10) at 25^(@)C . For maintaining a constant ...

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  3. pH of a mixture of HA and A^(-) buffer is 5. Kb of A^(-) =10 ^(-10 )...

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  4. A buffer solution contains 0.2 mole of NH4 OH and 0.2 mole of NH4 Cl...

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  5. From the following table {:("Buffer solution ", "Vol .of 0.1 M weak ac...

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  6. Which buffer solution has maximum pH?

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  7. Buffer capacity of acidic buffer solution is maximum when (1) P^(H)...

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  8. When 0.02 mole of an alkali is added to an acid buffer , the pH change...

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  9. Aqueous solution of KCI is neutral because

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  10. Assertion (A) : Aqueous solutions of ZnSO4 is neutral. Reason ( R ...

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  11. (A): Aqueous solution of Na(2)CO(3) is acidic in nature (R): Na^(+) ...

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  12. The no.of hydroxyl ions produced by one molecule of Na(2),CO(3) , on h...

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  13. The nature of 0.1 M solution of sodium bisulphate is

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  14. In the titration of acetic acid versus sodium hydroxide , the pH of th...

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  15. The P^(H) of an aqueous solution of NH4 CN( Ka of HCN is 9.2 xx 10^(-...

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  16. The hydrolysis constant of CH3 COONa is given by

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  17. Hydrolysis constant of salt derived from strong acid and weak base is ...

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  18. The hydrolysis constant of NaX (Ka of HX is 2xx 10 ^(-6)) is

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  19. The P^(H) of 0. 1M solution of the following compounds increases i...

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  20. Assertion (A): Aqueous solution of ammonium acetate is neutral Reaso...

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