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WorksheetsS1-Q12-U3 all
Total questions: 15
Worksheet time: 48mins
in the equation provided , which is the correct statement ?
H2O represents base while HF represents conjugated acid
H2O represents acid while HF represents conjugated base
HF represents acid while F- represents conjugated base
HF represents base while F- represents conjugated acid
Which of the following acids never form acidic salt?
Phosphoric acid
carbonic acid
hydrochloric acid
sulphuric acid
Which of the following will turns litmus paper into blue?
Vinegar
orange juice
soft drink
baking soda
The salt that dissolves in water giving a solution its pH value is higher than 7 is .........
NaOH
K2SO4
NaHCO3
NH4Cl
in the figure provided , if X and Y have the same concentration , So solution X is ....... , while Y is ........
sodium chloride / glucose
sodium chloride / aluminum nitrate
potassium carbonate / aluminum nitrate
potassium carbonate / glucose
Which of the following solution will have the higher boiling point ?
1 M sodium carbonate
2 M sodium carbonate
1 M iron (II) chloride
2 M iron (III) chloride
A mixture of ethanol (boiling point 78C ) and water ( boiling point 100C) is separated by fractional distillation technique , so which graph will represents the concentration versus the time ?
A
B
C
D
Which of the following values has no unit ?
Molar concentration
molal concentration
pH
volume
mass
The mixture of silt in water is ........
heterogeneous colloidal mixture
homogenous suspension mixture
solution which content cannot be separated by filtration
suspension mixture which content can be separated by filtration
the conjugated base of water is ............
O-2
OH-
H3O+
H2O2
What is the final colour of the phenol phthalein indicator when mixing same volume of 2M H2SO4 and 2 M Al(OH)3 (You should write a balanced equation to see the molar ratio)
Colourless
green
Pink
Violet
What is the volume of water required to dilute a 0.3 M 200ml solution of NaOH to be 0.1 M ?
200 ml
400 ml
600 ml
800 ml
the freezing point of 2M solution of sodium hydroxide is equal to ...........
-1.86°C
-3.72°C
-11.16°C
-7.44°C
When adding H2SO4 to H2O , which pair represents the conjugated acid and base?
H2SO4 & H3O+
H3O+ & H2O
H2SO4 & HSO4-
H3O+ & H2SO4
what is the mass of Sodium hydroxide required to prepare 400ml of 2 M solution . [Na=23; O=16; H=1]
32 gm
40 gm
80 gm
0.4 gm
