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

• 1. common ion effect
• 2. solubility product
• 3. dissociation constant
• 4. dissociation constant for an acid

Question: Addition of CH3COOH and CH3COONa gives in water_______________?

• 1. Standard solution
• 2. buffer solution
• 3. acidic buffer solution
• 4. both B & C

Question: Solubility of any salt can be determined from_______________?

• 1. Ka
• 2. Kb
• 3. Kc
• 4. Ksp

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

• 1. volume is decreased
• 2. volume increased
• 3. heat absorbed
• 4. no. of moles of specie decreased

Question: Equilibrium state is achieved quickly by the addition of ________________?

• 1. reactants
• 2. acid
• 3. base
• 4. catalyst

Question: Which one of the following is a buffer solution ?

• 1. brine
• 2. blood
• 3. glue
• 4. solution of CuSO4

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

• 1. buffer solution
• 2. normal solution
• 3. standard solution
• 4. neutral solution

Question: Conjugated base of a weak acid is_________________?

• 1. weak
• 2. strong
• 3. moderately weak
• 4. unstable

Question: Kc value has_______________?

• 1. No units
• 2. Units
• 3. Both A & B
• 4. None

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

• 1. 0
• 2. 1
• 3. 2
• 4. any one