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revision prep 2 session 2

Quiz by Mai Mohamed Elwazeer

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Q 1/9
Score 0
when sodium react with water , ....................gas evolves.
29
O2
H2
N2

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9 questions

Show answers

Q1
when sodium react with water , ....................gas evolves.
O2
H2
N2
20s
Q2
the oxide which dissolves in water and produces an acid is ........................
FeO
MgO
CO2
30s
Q3
The halogen which exists in a liquid state is ...................
chlorine
bromine
iodine
20s
Q4
Sodium in a liquid form is used in .......................
fridges
computers
nuclear reactors
20s
Q5
ozone layer absorbs .....................
UV rays
IR rays
x- rays
20s
Q6
................is used in extinguishing fires .
methyl bromide gas
nitrogen oxides
halons
30s
Q7
the volume of hydrogen gas evolving from water electrolysis equals .....................the oxygen volume .
equal to
double
half
30s
Q8
water has a \an ..................effect on litmus paper.
neutral
basic
acidic
20s
Q9
,..... ............is considered the midway between horse and zebra
dodo bird
golden frog
quagga
20s

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