The term allotrope refers to one or more forms of a chemical element that occur in the same physical state. … For example,
graphite and diamond
are both allotropes of carbon that occur in the solid state. Graphite is soft, while diamond is extremely hard.
What is an allotrope Class 8?
Answer: The term allotrope refers to
one or more physical forms of a chemical element that occurs in the same physical state
. Allotropes may show differences in chemical and physical properties.
What is an allotrope in chemistry?
Allotropy,
the existence of a chemical element in two or more forms
, which may differ in the arrangement of atoms in crystalline solids or in the occurrence of molecules that contain different numbers of atoms. … Elements exhibiting allotropy include tin, carbon, sulfur, phosphorus, and oxygen.
Which answer is an example of an allotrope?
The most notable examples of an allotrope are
the allotropes of carbon
. The various physical forms of carbon include diamond and graphite. Allotropes are different STRUCTURAL forms of an element as the atoms of the element are bonded together in a different manner.
What is an allotrope Class 10?
Allotropes are
two or more forms of the same element existing in the same physical state
(either solid, liquid, or gas) that differ from each other in their physical, and sometimes also in chemical, properties.
How do you identify allotropes?
Allotropes are different forms of the same element. Different bonding arrangements between atoms result in different structures with different chemical and physical properties. Allotropes occur only with certain elements, in
Groups 13 through 16
in the Periodic Table.
What are the types of allotropes?
Diamond, graphite and fullerenes
(substances that include nanotubes and ‘buckyballs’ , such as buckminsterfullerene) are three allotropes of pure carbon.
Are allotropes?
Allotropes are
different structural forms of the same element
and can exhibit quite different physical properties and chemical behaviours. The change between allotropic forms is triggered by the same forces that affect other structures, i.e., pressure, light, and temperature.
What is Catenation give example?
Catenation Definition: Catenation is the binding of an element to itself through covalent bonds to form chain or ring molecules. Examples:
Carbon is the most common element
that exhibits catenation. It can form long hydrocarbon chains and rings like benzene. ahlukileoi and 14 more users found this answer helpful.
What are the 4 main allotropes of carbon?
Use the accompanying fact sheet and differentiated flash card activity to explore the different properties and uses of four allotropes of carbon –
diamond, graphite, graphene and buckminsterfullerene
.
Which element has most allotropes?
The elements
carbon, oxygen, sulfur, tin and phosphorus
all have allotropic forms. Carbon is considered to be monotropic, as graphite is more stable than diamond. Oxygen is also considered to be monotropic as molecular oxygen (O
2
– in the air) is more stable that ozone (O
3
– triatomic oxygen) under natural conditions.
Is allotropic change a physical reaction?
The conversion of ferrite into austenite is a phase transition, so it should formally be classified as a
physical change
.
Which allotrope of carbon is used as lubricant?
Graphite powder
is used as a dry lubricant.
What is Catenation class 10th?
Catenation is
the ability of an atom to form bonds with other atoms of the same element
. It is exhibited by both carbon and silicon. Compare the ability of catenation of the two elements.
What is homologous series Class 10?
> A homologous series is
a series of hydrocarbons which have similar chemical properties and they share the same general formula
. They are organic compounds having similar structure and functional groups. … – The members of a homologous series have the same chemical properties.
Which element does not show Allotropy?
The element that does NOT exhibit allotropy is
bismuth
.
