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Worksheetsquiz 6 (sec.1)
Total questions: 19
Worksheet time: 2hrs 35mins
Which of the following is insoluble in water ?
Idonie
Nickel nitrate
Sodium chloride
potassium hydroxide
methane, oil, and fats are all examples
non-polar compounds
polar- compounds
ionic compounds
none of the answers
Althoug sugar is a non-polar sustance, it is soulble in water. Which of the following can explain the dissolution of sugar in water ?
Sugar can dissolve in water due to formation of hydrogen bonds
Sugar can dissolve in water due to the formation of covalent bonds
Sugar can dissolve in water due to the formation of ionic bonds
Sugar can dissolve in water due to the formation of metallic bonds
if the solubility of a salt in water equals (30g/100g of HO) at a certain temperature ... What is the mass of the salt required to be added to 300g of the water to obtain a saturated solution at the same temperature ?
20g
40g
60g
90g
The components of solutions……….
can’t be distinguished by the naked eye or the electron microscope
can be distinguished by the naked eye
can be distinguished by electron microscope only
none of the answers are correct
Which of the following is correct when we add sugar to water
they form a heterogeneous mixture and are called a colloid
they form a homogeneous mixture and are called suspension
they form a homogeneous mixture and are called solution
they form a heterogeneous mixture are called solution
the unit of measuring the molarity of solution is …………
mol/L
kg/mol
mol/kg
mol/g
In which of the following mixtures can components be distingushed by the naked eye
cobalt (II) chloride in water
blood
sugar in kerosene
aerosol
Which of the following is the correct term for a solution that cannot dissolve more solute at a certain tempreture ?
Saturated solution
Unsaturated solution
Super saturated solution
solvent
Fill the blank: Aqueous sodium chloride can be considerd a
strong electrolyte
weak electrolyte
nonelectrolyte
none of the answers are correct
the mass percent of the solution produced from dissolving of 10g of sucrose in 240g of water is……….
10%
4%
44.8%
7%
In an experiment, it is found that substance A dissolves in benzene. What conclusion can be drawn and extrapolated from this observation ?
substance A dissolves in polar solvents and therefore is likely to dissolve in organic solvents
substance A dissolves in organic solvents and therefore is likely to dissolve in polar solvents
substance A dissolves in dissolves in organic solvents and therefore is unlikely to dissolve in polar solvents
all of the answers are correct
In which of the following examples of a solution is the physical state of the solute and solvent the same
mercury / silver dental amalgam
salt water
air
carbonated drinks
solubility is the amount of solute in grams that dissolves in of solvent to form a saturated solution at standard temperature and pressure (STP)
100g
1 gram
1000 g
500 g
Which of the following besy describes what a precipitation reaction is ...?
the formation of the soluble salt from the mixing of two solutions
the formation of gas from mixing of two solutions
the formation of a covalent compound from the mixing of two solutions
the formation of an insoluble salt (i.e., a solid) from the mixing of two solutions
Hydrogen chloride is an example of compounds that conduct electric current when they are..........
polar covalent, dissolved in water
non-polar, dissolved in benzene
ionic, dissolved in water
all of the answers are correct
Which of the following substances dissolves in water ?
sodium chloride
dichloromethane
iodine
benzene
Which of the following ionic compounds of the chloride is insoluble in water ?
potassium chloride
magnesium chloride
sodium chloride
silver chloride
The larger matter inside the solution is…….
solvent
solute
solid substance
solvent- solute
