Chemistry MCQs

Page No. 76

Sodium benzoate and benzoic acid are mixed in equimolar ration to form buffer if pKa is 2 what will be the pH ?


a0


b1


c2


dany one


View Answer 2

Kc value has_______________?


aNo units


bunits


cBoth A and B


dNone


View Answer Both A and B

Conjugated base of a weak acid is_________________?


aweak


bstrong


cmoderately weak


dunstable


View Answer strong

Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?


abuffer solution


bnormal solution


cstandard solution


dneutral solution


View Answer buffer solution

Which one of the following is a buffer solution ?


abrine


bblood


cglue


dsolution of CuSO4


View Answer blood

Equilibrium state is achieved quickly by the addition of ________________?


areactants


bacid


cbase


dcatalyst


View Answer catalyst

By decreasing the pressure the reaction will go to that direction where_________________?


avolume is decreased


bvolume increased


cheat absorbed


dno. of moles of specie decreased


View Answer volume increased

Solubility of any salt can be determined from_______________?


aka


bkb


ckc


dksp


View Answer ksp

Addition of CH3COOH and CH3COONa gives in water_______________?


aStandard solution


bBuffer solution


cAcid buffer solution


dboth B & C


View Answer Both B and C

When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called_________________?


acommon ion effect


bsolubility product


cdissociation constant


ddissociation constant for an acid


View Answer solubility product

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