metals and non metals Flashcards
what is the green material
a mixture of copper hydroxide
what is oxide of magnesium
that the red
litmus turns blue. So, oxide of magnesium
is also basic in nature
product formed in
the reaction of sulphur and oxygen is
sulphur dioxide gas.
When sulphur
dioxide is dissolved in water sulphurous
acid is formed. The reaction can be given
Sulphur dioxide (SO2) + Water (H2O) ® Sulphurous acid (H2SO3)
what turns blue litmus paper to red
sulphurous acid
oxides of
non-metals are .
acidic in nature
Sodium metal
reacts vigorously with oxygen
sodium metal is stored in
in kerosene.
non metals that react with air
phosphorus
non metal that catches fire when reacted with air
phosphorus
phosphorous is store in
water.
What does the ‘pop’ sound indicate?
presence of hydrogen gas.
Metals react with sodium hydroxide to produce
hydrogen gas.
Reactions of non-metals with bases are
complex
metal displaces another metal from its
compound in
aqueous solution
zinc is more reactive than
than copper and iron
purple
coloured solution which is applied
on wounds as an
antiseptic,
- Which of the following can be beaten into thin sheets?
Zinc
Phosphorus is a very
reactive non-metal.
Metals are conductors of heat and
electricity
what is the best conductor of heat and electricity.
Silver
(c) Iron is______reactive than copper.
Copper is less reactive than iron
(d) Metals react with acids_____ to produce gas.
hydrogen gas
