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Acids, Bases And Salt Preparation
Test Description: Let's do our revision for FA4!!
Instructions: Answer all questions to get your test result.
1) What is the definition of acid?
A
dissociates partially to form H+ ions
B
proton, H+ receiver
C
dissociates partially to form OH- ions
D
proton, H+ donor
2) What is the definition of base?
A
proton, H+ receiver
B
dissociates partially to form H+ ions
C
proton, H+ donor
D
dissociates partially to form OH- ions
3) What is the definition of weak acid?
A
dissociates partially to form OH- ions
B
proton, H+ donor
C
dissociates partially to form H+ ions
D
proton, H+ receiver
4) What is the definition of weak base?
A
proton, H+ donor
B
dissociates partially to form OH- ions
C
dissociates partially to form H+ ions
D
proton, H+ receiver
5) The following are methods to differentiate weak acid from strong acid except for:
A
Electrical conductivity
B
Rate of Reaction
C
Litmus paper
D
pH value using universal indicator
6) State the method used to prepare sodium chloride from hydrochloric acid and sodium hydroxide
A
Neutralisation - Reacting acid with insoluble base
B
Precipitation - Reacting two soluble substances
C
Titration - Reacting acid with soluble base
D
Neutralisation - Reacting acid with metal
7) State the method used to prepare sodium chloride from hydrochloric acid and sodium carbonate.
A
Titration - Reacting acid with soluble base
B
Precipitation - Reacting two soluble substances
C
Neutralisation - Reacting acid with metal
D
Neutralisation - Reacting acid with insoluble base
8) State the method used to prepare barium sulfate from sodium sulfate and barium nitrate.
A
Titration - Reacting acid with soluble base
B
Precipitation - Reacting two soluble substances
C
Neutralisation - Reacting acid with insoluble base
D
Neutralisation - Reacting acid with metal
9) The following compounds are soluble except for:
A
silver chloride
B
lead nitrate
C
calcium nitrate
D
ammonium sulfate
10) The following compounds are soluble except for:
A
lithium hydroxide
B
barium sulfate
C
magnesium nitrate
D
calcium chloride
11) The following steps are needed for preparing salt using titration except for:
A
Adding indicator into alkali
B
Add insoluble base in excess
C
Repeat using the same volume without indicator
D
Dry using filter paper
12) The following steps are needed for preparing salt using precipitation except for:
A
Add two soluble substances
B
Heat to evaporate water
C
Dry using filter paper
D
Filter the mixture
13) Choose the correct ionic equation for the reaction between lead (II) nitrate and potassium chloride
A
H+ (aq) + OH- (aq) ------------ H2O(l)
B
K+ (aq) + NO3- (aq) ------------ KNO3 (aq)
C
Pb2+ (aq) + 2Cl- (aq) ------------ PbCl2 (s)
D
Pb2+ (aq) + 2NO3- (aq) ------------ Pb(NO3)2 (aq)
*select an answer for all questions
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