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The following aqueous solutions given in...

The following aqueous solutions given in column containing 1:1 mole ratios of the respective pairs of substances. Assume all concentrations are I M.
`{:("List-I", " " "List-II"),((A) NOH+NH_(4)OH,P."A buffer with a pH less than 7"),((B)NaOH+HCI,Q."A buffer with a pH greater than 7"),((C)HCN(P_(ka)=9)+KCN,R."The solution with a pH of 7"),((D) C_(6)H_(5)NH_(2)(P_(ka)=9.5)+C_(6)H_(5)NH_(3)""^(+)Cl^(-),S."The solution with the highest pH "):}`

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The correct Answer is:
A-S;B-R;C-Q,D-P
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{:("List-I"," ""List-II"),((A)SiF_(4),P."Lewis acid"),((B)CO_(2),Q."Lewis base"),((C) SO_(2),R."Bronstead acid"),((D)NH_(3),S."Bronstead base"):}

Match the Column-I with Column-II : {:("List-I", " " "List-II"),((A)CuSO_(4),P."Cationic interaction"),((B)Na_(2)CO_(3),Q."Anionic interaction"),((C)FeCI_(3),R.pH gt 7),((D) K_(2)SO_(4),S. "pH" lt7),(,T."No hydrolysis of ions"):}

{:("List-I" ,"List-II"),((A) "CC"I_(4),P. "Lewis acid"),((B)AICI_(3),"Q.Lewis base"),((C )NH_(3),R."Bronsted acid"),((D) HCIO_(4) ,S."Bronsted base"),(,T."Neither lewis acid nor Lewis base"):}

Match the following : {:("List - I","List - II"),((A) CH_(3)-CH(OH)-CHO,"(p) Carbohydrate"),((B) HOCH_(2)-CH(OH).CHO,"(q) Amino acid"),((C ) CH_(3)-CH(NH_(2)).COOH,"(r ) Positive Tollen's test"),((D) Ph.CH(CH_(2)NH_(2)).COOH,"(s) Ninhydrint test"):}

{:("List-I"," ""List-II"),(""," ""In the aqueous medium the ion can be"),((A)HPO_(4)^(-2),P."Arrhenius acid"),((B)CO_(3)^(-2),Q."Bronstead base"),((C)H_(2)PO_(3)^(-1),R."Amphoteric"),((D) H_(2)PO_(2)^(-1),S."Bronstead acid"):}

{:("List-I","List-II"),((A) 1xx10^(-8) "M KOH",P.pH=1.3),((B)1xx10^(-8)"MHBr" ,Q.pH=6.95),((C )1"MHCI"+1 "MNaOH",R.pH=7.0414),((D) 0.02 MH_(2)SO_(4),S.pH=7),(,"acidic solution"):}

20 ml of 0.1 M NH, solution is titrated with 0.025M HCI solution. What is the pH of the reaction mixture at equivalence point at 25^(@) C ? (K_(b) "of " NH_(3) "is " 2 xx 10^(-6)) .

{:("List - I","List - II "),("(Salt)",(k_(1) = 10^(-2) k_(2) = 10^(-7))),((A) NaHSO_(3),(P)"Acidic solution "),((B) Na_(2)HPO_(3),(Q)"lkaline solution "),((C) NAH_(2)PO_(3),(R)"pH independent on concentration "),((D) Al(NO_(3))_(3),(S) "Amphoteric salt "):}

AAKASH SERIES-IONIC EQUILLIBRIUM-LECTURE SHEET ( EXERCISE-III) ( Straight Objective Type Questions)
  1. Dissociation of CH(3),COOH is supressed by adding

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  2. Which pair will show common ion effect ?

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  3. Equal volumes of the following solutions are mixed. Which form buffer ...

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  4. pH of (HCN + KCN) buffer can be inreased by .

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  5. Which one of the following is/are buffer solution(s)?

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  6. Which of the following do not show change in pH on dilution?

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  7. Which are acidic salts ?

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  8. A 0.1 M solution of weak acid HA is 1% dissociated at 25^(@)C To this ...

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  9. 0.15 mole of pyridinium chloride has been added into 500 cm^(3) of 0.2...

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  10. A certain buffer solution contains equal concentration of X^(-) and HX...

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  11. Certain weak acid has P^(ka) = 4. Find pH of 0.01M NaA(ag)

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  12. The dissociation constant of a substituted benzoic acid at 25^(0)C is ...

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  13. If P^(ka) of acetic acid and P^(kb) of ammonium hydroxide are 4.76 ea...

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  14. Higher the amount of acid or base used to produce a definite change of...

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  15. Higher the amount of acid or base used to produce a definite change of...

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  16. 20 ml 0.1M CH(3),COOH has P^(H) value 3. It is titrated with 0.1M NaOH...

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  17. What is the p^(H) of the solution after 50% of acid is neutralised

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  18. What is [OH^(-1)] of the solution at the equivalence point at 25^(@) C

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  19. The following aqueous solutions given in column containing 1:1 mole ra...

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  20. Match the Column-I with Column-II : {:("List-I", " " "List-II"),((A)...

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