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list some uses of non metals [at least 10 uses]
the metal which is not corroded by air, water and acid is (a)gold(b)zinc(c)copper
what are the uses of metals and nonmetals
uses of 5 metals and non metals in our daily life.
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?
Give 10 examples of non- metals.
what is sonorous?
Find out the location of the deposits of iron, alimunium and zinc in india?
compare the properties of metals and non-metals with respect to malleability, ductility and conductivity.
An oxide solution of which of the following elements will turn blue litmus red?
What Is Thermite Reaction?
Fe + O2 + H2O -----> ?
Why is phosphorus stored under water and sodium and potassium under kerosene?????
list of metals with their
name a non-metal that is a good conductor of heat and electricity
show with the help of an experiment that copper is more reactive than silver.plz giv the ans soon
what do u mean by reactivity series of metals?
in what form magnesium is found in plants
Wht happens when zinc strip is dipped into copper sulphate solution?
Silver is more likely to tarnish near a petroleum refinery than in a place far away . Explain why?
give examples of malleable, ductile, sonorous materials
gold is found in free state but iron is not . Give reason
plz answer today
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.
why gold is found in free state but iron is not?
Rust is a basic or acidic oxide?
write the name of four metals and non metals with their physical and chemical propertiesand their uses.
experts or anyone else answer it quickly
when gold ornaments are sent for polishing they lose small amount of weight.explain how does this happen?
elements which do not react chemically are known as?
Why are sodium and potassium stored under kerosene Oil.
Property of metals which make them useful as electric wires/
give an example of reaction of non metal with bases
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.
copper does not react with dilute hydrochloric acid even on heating but reacts with sulphuric acid . why?
Why zinc is more reactive than copper?
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
name a non metal which has metallic lustre.
write the reactivity series of metals
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 __________.
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.
Suppose copper is high up in the reactivity series.Would it still have been such a useful metal ? Give reasons .
i need the symbols of atlaest 20 metals and 20 non metals
the main ones
Why can't copper displace zinc from its salt solution ?
why lemon pickle is not stored in aluminium utensils
what precautions we should have to take while handling the equipments containing mercury?
What are the physical and chemical properties of metals and non-metals?
IF PVC IS A BAD CONDUCTOR OF ELECTRICITY AND HEAT, HOW IS IT KNOWN AS A THERMOPLASTIC ,WHICH GETS DEFORMED ON THE ACTION OF HEAT?
what is sonority? explain in detail
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?????
Which non metal is used in vulcanization of rubber and why??
what is meaning of lusture
why is gold preferred for making jewellery?
I Read That Red Soil Is Acidic In Nature. But I Know That Red Soil Contains Iron Oxide Which Imparts It Red Color
But Iron Oxide Is Basic In Nature As It Is An Oxide Of A Metal.
So My Question Is What Other Materials Are Present That Make It Acidic
Please Help On 29th NSO Is There
how do metals react with acids? explain through examples.
Name a metal which is not attacked by cold water,boiling water or steam???
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
what is the advantage of galvanized iron over tin-plated iron?
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 does POP sound indicate?
Why sodium is kept is kerosene..?
Please explain this equation 2Cu+H2O+CO2+O2=Cu(OH)2=CuCO3
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
what happens when dilute sulphuric acid is poured oon copper plate?
curd cannot be stored in a aluminium utensil. why?
names of places in india where gold copper and iron mines are located
WHY IS SODIUM KEPT UNDER KEROSENE AND NOT UNDER WATER
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
give me some poster ideas for the topic `say no to plastics`
Which of the following is used in crackers?
(a) Metals (b) Semi-metals (c) Non-metals (d) All of these.
Two difference between metal non metal ???
name a non metal which is yellow coloured solid , insoluble in water but soluble in carbon disulphide
what are metalloids? give two examples.
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