Worksheetschem play 1
Total questions: 10
Worksheet time: 5mins
Sun is usually heated by
Ions
Nuclear fission
Nuclear fusion
Atoms
CORRECT VALUE OF R
8.134 J/MOL K
8.143 J/MOL K
8.314 J/MOL K
8.34 J/MOL K
Higher boiling point of alcohol than ether is due to
Hydrogen Bonding
van der waals forces
electrostatic forces
ionic bond
What is a reducing agent?
It undergoes reduction
It undergoes oxidation
It undergoes no change
It undergoes physical change
The noble gases have low boiling points because:
their ionization potentials are very low
only weak Van der Waals forces hold the atoms together
they are produced by the fractional distillation of liquid air
they have eight electrons in the outer shell
For which of the following classes of salts are all of its compounds soluble in water?
sulfates
hydroxides
chlorides
nitrates
Aqua regia is:
concentrated nitric acid
a mixture of three parts of concentrated nitric acid and one part concentrated Hydrochloric acid
a mixture of three parts of concentrated hydrochloric acid and one part concentrated nitric acid
a mixture of sulfuric acid and hydrochloric acid
Compounds of iodine are NOT used for which of the following?
as a refrigerant
in photographic film
as an essential part of diet
as an antiseptic
Of the following, which has units of "Pascal".
force
volume
pressure
viscosity
number of moles of solute per kilogram of solvent:
molarity
normality
equivalents
molality
