Select Board & Class
list some uses of non metals [at least 10 uses]
what are the uses of metals and nonmetals
the metal which is not corroded by air, water and acid is (a)gold(b)zinc(c)copper
uses of 5 metals and non metals in our daily life.
Give 10 examples of non- metals.
which one of the following will displace copper from a solution of copper sulphate? a- al b- Fe c-Mg d- all of these e- non of these
Find out the location of the deposits of iron, alimunium and zinc in india?
what is sonorous?
Which one of the following elements symbolised as A and B is a metal, 19A9 or 24B12? Why?
What Is Thermite Reaction?
Fe + O2 + H2O -----> ?
Why sodium does not react with kerosene?
Why is phosphorus stored under water and sodium and potassium under kerosene?????
write the name of four metals and non metals with their physical and chemical propertiesand their uses.
experts or anyone else answer it quickly
list of metals with their
True or False
1) Metalloids have characteristics of metals as well as non metals.
2) Mercury is the metal at room temperature.
3) Metals have higher melting and boiling points.
4) Graphite is a good conductor of electricity.
5) Noble metals are not used to make ornaments.
name a non-metal that is a good conductor of heat and electricity
1. The most reactive metal is
a)Iron b)Gold c) Potassium d) Zinc
2. What happens when aluminium metal is placed in the freshly prepared solution of sodium hydroxide ? What does a "POP" sound indicates , when a burning matchstick is brought near the mouth of the test tube?
what do u mean by reactivity series of metals?
compare the properties of metals and non-metals with respect to malleability, ductility and conductivity.
Wht happens when zinc strip is dipped into copper sulphate solution?
give examples of malleable, ductile, sonorous materials
Q.1. can you store lemon pickle in an aluminium utensil?explain
Q2. give reasons for the following.
a. aluminium foils are used to wrap food items.
b.immersions rods for heating liquid are made up of metalic substance.
c. copper cannot displace zinc from its salt solution.
d.sodium and potasium are stored in kerosene.
1) A suspension of rust in water turns __________litmus ____________.
2)In general, metallic oxides are ___________ in nature whereas oxides of non metals are _________ in nature.
5) Metals react with acids to produce___________ gas which burns with a __________ sound.
7) The elements which possess character of both metals and non metals are called __________.
why gold is found in free state but iron is not?
why is acetic acid written as CH3COOH and not like C2H4O2?i want an experts answer fast.....
Rust is a basic or acidic oxide?
when gold ornaments are sent for polishing they lose small amount of weight.explain how does this happen?
Why are sodium and potassium stored under kerosene Oil.
give an example of reaction of non metal with bases
What Is Sol ,Emulsion, Gel, Colloid, Suspension, True Solution.
Give examples also
copper does not react with dilute hydrochloric acid even on heating but reacts with sulphuric acid . why?
which from the following is a metal:
C, N, Na, O?
Why zinc is more reactive than copper?
name a non metal which has metallic lustre.
WHY IS SODIUM KEPT UNDER KEROSENE AND NOT UNDER WATER
write the reactivity series of metals
Prepare Index cards for any four metals and four non-metals. The card should have information like name of metal/non metal;It's physical properties ,chemical properties and it's uses.
i need the symbols of atlaest 20 metals and 20 non metals
the main ones
is plastic a non metal? if no, then why not? if yes, then why is it written in the column " properties of non-metals " that all non- metals are soft and can be easily broken? i need a perfect explanation
Why can't copper displace zinc from its salt solution ?
a. Zinc + lead nitrate solution
b. Iron + zinc sulphate solution
c. Lead + copper nitrate solution
d. Magnesium + Silver nitrate solution
e. Copper + potassium chloride solution
why lemon pickle is not stored in aluminium utensils
What are the physical and chemical properties of metals and non-metals?
what is sonority? explain in detail
what is the latin name of platinum
Property of metals which make them useful as electric wires/
which is best conductor of heat and electricity?
a)gold b)silver c)copper d)aluminium
why immersion rods for heating liquids are made up of metallic substances?????
4Fe+3o2+xH2O becomes 2Fe2o3xH2o
I want to know how does the 'x' come in between ....
Which non metal is used in vulcanization of rubber and why??
An oxide solution of which of the following elements will turn blue litmus red?
what is meaning of lusture
why is gold preferred for making jewellery?
A compound `X` is used for drinking, has pH =7.Its acidified solution undergoes decomposition in presence of electricity to produce gases `Y` and `Z` The volume of Y is double than Z. Y is highly combustible whereas Z is supporter of combustion .Identify X, Y & Z and writes thechemical reactions involved.
how do metals react with acids? explain through examples.
How to prepare Index card on 4 metals and 4 non-matals with the information like name of matals/nonmatals , its physical properties , chemical properties and uses ???????????
please tell faster
Prepare imdex cards for any four metals and non-metals. The card should have information like name of the matal/non-metal, its physical properties, chemical properties and uses.
what is specific gravity in metals and non metals?
Why sodium is kept is kerosene..?
Please explain this equation 2Cu+H2O+CO2+O2=Cu(OH)2=CuCO3
names of places in india where gold copper and iron mines are located
why are metals used making machinery?
what happens when dilute sulphuric acid is poured oon copper plate?
A metal was burnt in air. The substance formed was dissolved in water and tested with blue and red litmus paper. What result can we expect ?
Three pins made of copper, aluminium and iron respectively are kept i moist air for several days.The pin that that will rust is
a)copper b)aluminium c)iron d)all
give me some poster ideas for the topic `say no to plastics`
Can we store 500ml zinc sulphate solution in an aluminum vessel? Give reason.
Two difference between metal non metal ???
what do you mean when you say, "HYDROGEN IS USED IN THE SYNTHESIS OF AMMONIA, METHYL ALCOHOL, IN WELDING TORCHES, ETC."
what are metalloids? give two examples.
Which of following element will form a basic oxide if reacted with oxygen
1.sulphur 2.phosphorus 3.magnesium 4.carbon
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