The hardest form of carbon is (a) Coke (b) Graphite (c) Diamond (d) Charcoal

The hardest form of carbon is (a) Coke (b) Graphite (c) Diamond (d) Charcoal
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Hardest allotrope of carbon is - (1) diamond (2) graphite (3) coke (4) lamp black

Description : Hardest allotrope of carbon is - (1) diamond (2) graphite (3) coke (4) lamp black

Last Answer : (1) diamond Explanation: Diamond is one well known allotrope of carbon. The hardness and high dispersion of light of diamond make it useful for both industrial applications and jewellery. Diamond is ... mineral. This makes it an excellent abrasive and makes it hold polish and luster extremely well.

Hardest allotrope of carbon is (1) diamond (2) graphite (3) coke (4) lamp black

Description : Hardest allotrope of carbon is (1) diamond (2) graphite (3) coke (4) lamp black

Last Answer : diamond

Which of the following is the purest form of Carbon? (1) Charcoal (2) Granite (3) Diamond (4) Graphite

Description : Which of the following is the purest form of Carbon? (1) Charcoal (2) Granite (3) Diamond (4) Graphite

Last Answer : (3) Diamond Explanation: Because the carbon atoms in diamond are more tightly bound than in graphite (as diamond is the hardest material known), it is more difficult for impurities to get into the diamond lattice and as a result diamonds are often more pure than graphite.

The hardest natural substance is - (1) Diamond (2) Iron (3) Graphite (4) Copper

Description : The hardest natural substance is - (1) Diamond (2) Iron (3) Graphite (4) Copper

Last Answer : (1) Diamond Explanation: Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms

Hardest material is - (1) Tungsten (2) Diamond (3) Steel (4) Graphite

Description : Hardest material is - (1) Tungsten (2) Diamond (3) Steel (4) Graphite

Last Answer : (2) Diamond Explanation: Diamondsare commonly known as the hardest substance on earth, used in drill bits for cutting applications.

Hardest material so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone

Description : Hardest material so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone

Last Answer : (A) Diamond

Hardest materials so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone

Description : Hardest materials so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone

Last Answer : (A) Diamond

Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Description : Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Last Answer : (1) Graphite Explanation: Graphite is a good conductor of electricity because its electrons are delocalized or free to move around. Each carbon atom in graphite is directly linked to only three carbon atoms ... and the fourth is relatively free and can move from one car-bon atom to the other.

Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal

Description : Which one of the following is a good electrical conductor? (1) Graphite (2) Diamond (3) Peat (4) Charcoal 

Last Answer : Graphite

The most pure form of Carbon among the options is – (1) Anthracite (2) Lampblack (3) Graphite (4) Wood Charcoal

Description : The most pure form of Carbon among the options is – (1) Anthracite (2) Lampblack (3) Graphite (4) Wood Charcoal

Last Answer : (1) Anthracite Explanation: There are three forms of pure carbon: graphite, coal and diamond. Among coal, Anthracite has the highest carbon content, the fewest impurities, and the highest calorific content ... the most metamorphosed type of coal in which the carbon content is between 92.1% and 98%.

Carbon supply in pack carburising process is in the form of (A) Charcoal (B) Calcium carbide (C) Hydrocarbon oil (D) Graphite

Description : Carbon supply in pack carburising process is in the form of (A) Charcoal (B) Calcium carbide (C) Hydrocarbon oil (D) Graphite

Last Answer : (A) Charcoal

Carbon supply in pack carburising process is in the form of (A) Charcoal (B) Calcium carbide (C) Hydrocarbon oil (D) Graphite

Description : Carbon supply in pack carburising process is in the form of (A) Charcoal (B) Calcium carbide (C) Hydrocarbon oil (D) Graphite

Last Answer : (A) Charcoal

The most pure form of Carbon among the options is (1) Anthracite (2) Lampblack (3) Graphite (4) Wood Charcoal

Description : The most pure form of Carbon among the options is (1) Anthracite (2) Lampblack (3) Graphite (4) Wood Charcoal

Last Answer : Anthracite

Carbon occurs in nature in the purest form as (a) Diamond (b) Graphite (c) Carbon black (d) Coal

Description : Carbon occurs in nature in the purest form as (a) Diamond (b) Graphite (c) Carbon black (d) Coal

Last Answer : Ans:(a)

Carbon occurs in nature in the purest form as - (1) Diamond (2) Graphite (3) Carbon black (4) Coal

Description : Carbon occurs in nature in the purest form as - (1) Diamond (2) Graphite (3) Carbon black (4) Coal

Last Answer : (1) Diamond Explanation: There are three forms of pure carbon: Graphite, Coal and Diamond. All three are made up of elemental carbon, caol is the least pure when found in nature. Diamond is the purest form of Carbon.

As which one of the following, does carbon occur in its purest form in nature? (1) Carbon black (2) Graphite (3) Diamond (4) Coal

Description : As which one of the following, does carbon occur in its purest form in nature? (1) Carbon black (2) Graphite (3) Diamond (4) Coal

Last Answer : (3) Diamond Explanation: The purest form of carbon is neither diamond nor graphene or graphite . It is 'Fullerene' , the purest form of carbon.

Why is diamond hard whereas graphite soft even through both are crystalline forms of carbon?

Description : Why is diamond hard whereas graphite soft even through both are crystalline forms of carbon?

Last Answer : The reason for difference is because of arrangement of carbon atoms.

Why is diamond hard whereas graphite soft even through both are crystalline forms of carbon?

Description : Why is diamond hard whereas graphite soft even through both are crystalline forms of carbon?

Last Answer : The reason for difference is because of arrangement of carbon atoms.

What are Carbon, diamond and graphite together called? -General Knowledge

Description : What are Carbon, diamond and graphite together called? -General Knowledge

Last Answer : The answer is 'Allotropes'

Why do diamond and graphite have different physical properties even though they are both made of carbon?

Description : Why do diamond and graphite have different physical properties even though they are both made of carbon?

Last Answer : Feel Free to Answer

Diamond, graphite, and fullerenes all forms of carbon, are examples of_______.

Description : Diamond, graphite, and fullerenes all forms of carbon, are examples of_______.

Last Answer : Allotropes

_____is not an allotrope of carbon. (1) Buckminsterfullerene (2) Carbon Doxide (3) Diamond (4) Graphite

Description : _____is not an allotrope of carbon. (1) Buckminsterfullerene (2) Carbon Doxide (3) Diamond (4) Graphite

Last Answer : (2) Carbon Doxide Explanation: Carbon is capable of forming many allotropes due to its valency. Well-known forms of carbon include diamond and graphite. Other allotropes in clude: include buckyballs (fullerenes), amorphous carbon, glassy carbon, carbon nanofoam, nanotubes,and others.

What are Carbon, diamond and graphite together called?

Description : What are Carbon, diamond and graphite together called?

Last Answer : Allotropes

Out of carbon(diamond)and carbon (graphite) whose enthalpy of formation is taken as zero?

Description : Out of carbon(diamond)and carbon (graphite) whose enthalpy of formation is taken as zero?

Last Answer : Ans. Enthalpy of formation of carbon in the form of graphite is taken as zero because it is a more commonly found in stable form of carbon.

Diamond and graphite are polymorphs of which of th following elements? w) magnesium x) carbon y) sulfur z) nitrogen

Description : Diamond and graphite are polymorphs of which of th following elements? w) magnesium x) carbon y) sulfur z) nitrogen

Last Answer : ANSWER: X -- CARBON

In which of the following substances all carbon atoms are quaternary in nature ? (1) Graphite (2) Diamond (3) Teflon (4) Napthalene

Description : In which of the following substances all carbon atoms are quaternary in nature ? (1) Graphite (2) Diamond (3) Teflon (4) Napthalene

Last Answer : Diamond

Fussain (A) Is friable, charcoal like substance(B) Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal (C) Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation (D) All (A), (B) and (C)

Description : Fussain (A) Is friable, charcoal like substance (B) Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal (C) Is non-coking, but when blended with highly coking ... its swelling and produces high strength coke on carbonisation (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which of the following is used as filler in tyre of rubber? (1) Carbon black (2) Coal (3) Coke (4) Graphite

Description : Which of the following is used as filler in tyre of rubber? (1) Carbon black (2) Coal (3) Coke (4) Graphite

Last Answer : (1) Carbon black Explanation: The most common use (70%) of carbon black is as a pigment and reinforcing phase in automobile tires. Carbon black also helps conduct heat away from the tread and belt area of the tire, reducing thermal damage and increasing tire life.

Which of the following is used as filler in tyre of rubber ? (1) Carbon black (2) Coal (3) Coke (4) Graphite

Description : Which of the following is used as filler in tyre of rubber ? (1) Carbon black (2) Coal (3) Coke (4) Graphite

Last Answer : Carbon black

Which of the following is used in pencils? A.Graphite B.Silicon C.Charcoal D.Phosphorous -Science

Description : Which of the following is used in pencils? A.Graphite B.Silicon C.Charcoal D.Phosphorous -Science

Last Answer : answer is A. Graphite

Which of the following is used in Pencils? A. Graphite (Answer) B. Silicon C. Charcoal D. Phosphorous

Description : Which of the following is used in Pencils? A. Graphite (Answer) B. Silicon C. Charcoal D. Phosphorous

Last Answer : A. Graphite (Answer)

Which one of the following mixtures is homogeneous? (1) Starch and sugar (2) Methanol and water (3) Graphite and charcoal (4) Calcium carbonate and calcium bicarbonate

Description : Which one of the following mixtures is homogeneous? (1) Starch and sugar (2) Methanol and water (3) Graphite and charcoal (4) Calcium carbonate and calcium bicarbonate

Last Answer : (2) Methanol and water Explanation: A homogeneous mixture is a solid, liquid, or gaseous mixture that has the same proportions of its components throughout any given sample.

Which of the following is the hardest element? (a) Copper (b) Diamond (c) Iron (d) Silicon

Description : Which of the following is the hardest element? (a) Copper (b) Diamond (c) Iron (d) Silicon

Last Answer : Ans:(b)

Which of the following is the hardest substance? A. Copper B. Diamond (Answer) C. Iron D. Silicon

Description : Which of the following is the hardest substance? A. Copper B. Diamond (Answer) C. Iron D. Silicon

Last Answer : B. Diamond (Answer)

Mohs scale hardest is diamond - what's the softest?

Description : Mohs scale hardest is diamond - what's the softest?

Last Answer : Talc

The hardest substance available in earth is – (1) Platinum (2) Silicon (3) Diamond (4) Gold

Description : The hardest substance available in earth is – (1) Platinum (2) Silicon (3) Diamond (4) Gold

Last Answer : (3) Diamond Explanation: Diamond is the hardest naturally occurring substance found on Earth. But it is not the hardest substance.

The hardest material just prior to diamond in Mho's scale is (A) Topaz (B) Carborundum (C) Corundum (D) Calcite

Description : The hardest material just prior to diamond in Mho's scale is (A) Topaz (B) Carborundum (C) Corundum (D) Calcite

Last Answer : (C) Corundum

The hardest material just prior to diamond in Mhos scale is (A) Topaz (B) Carborundum (C) Corundum (D) Calcite

Description : The hardest material just prior to diamond in Mhos scale is (A) Topaz (B) Carborundum (C) Corundum (D) Calcite

Last Answer : (C) Corundum

The hardest rock is (A) Marble (B) Diamond (C) Talc (D) Quartz

Description : The hardest rock is (A) Marble (B) Diamond (C) Talc (D) Quartz

Last Answer : Answer: Option B

The hardest substance available on earth is (1) Platinum (2) Diamond (3) Quartz (4) gold

Description : The hardest substance available on earth is (1) Platinum (2) Diamond (3) Quartz (4) gold

Last Answer : (1) Platinum

Mohs scale hardest substance is diamond - what's the softest

Description : Mohs scale hardest substance is diamond - what's the softest

Last Answer : Talc

Generally Non-metals are not conductors of electricity. Which of the given is a good conductor of electricity? a) Diamond b) Graphite c) Sulphur d) Fullerene

Description : Generally Non-metals are not conductors of electricity. Which of the given is a good conductor of electricity? a) Diamond b) Graphite c) Sulphur d) Fullerene

Last Answer : b) Graphite

In India, the Black Revolution is related to the manufacturing of which product? (1) Charcoal (2) Crude petroleum (3) Diamond (4) Black gram

Description : In India, the Black Revolution is related to the manufacturing of which product? (1) Charcoal (2) Crude petroleum (3) Diamond (4) Black gram

Last Answer : (2) Crude petroleum Explanation: In India, the expression 'Black Revolution' is related to the production of crude petroleum. It refers to the attempts made by the government to radically boost crude oil production in the country during the 1970s.

Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of graphite is lower than that of diamond.

Description : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of graphite is lower than that of diamond.

Last Answer : Assertion (A): Enthalpy of graphite is lower than that of diamond. Reason (R ) : Entropy of ... False. D. If both Assertion & Reason are false.

What is common between diamond and graphite?

Description : What is common between diamond and graphite?

Last Answer : What is common between diamond and graphite?

Diamond and Graphite

Description : Diamond and Graphite

Last Answer : Find out the difference between : Diamond and Graphite

How do the physical properties of diamond compare to the physical properties of graphite?

Description : How do the physical properties of diamond compare to the physical properties of graphite?

Last Answer : Need answer

How are graphite and diamond the same and how are they different?

Description : How are graphite and diamond the same and how are they different?

Last Answer : They are both made of the element carbon, but the carbon atomsare in a different crystal pattern.

Why is graphite softer than diamond?

Description : Why is graphite softer than diamond?

Last Answer : The crystalline structure of graphite and diamond are very different.

Why is graphite softer than diamond?

Description : Why is graphite softer than diamond?

Last Answer : The crystalline structure of graphite and diamond are very different.