Graphite carbon atoms form planar layers in what regular geometric arrangement?

Graphite carbon atoms form planar layers in what regular geometric arrangement?
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ANSWER: HEXAGONAL 
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Diamond is harder than graphite because of – (1) difference in layers of atoms (2) tetrahedral structure of diamond (3) difference of crystalline structures (4) None of these

Description : Diamond is harder than graphite because of – (1) difference in layers of atoms (2) tetrahedral structure of diamond (3) difference of crystalline structures (4) None of these

Last Answer : (1) difference in layers of atoms Explanation: Diamond is harder than graphite because diamond has a more complex structure. Diamond's structure is like many pentagons connected together, each pentagon ... together in some way. Graphite's structure is very loose, with its bonds forming layers.

Diamond is harder than graphite because of : (1) difference in layers of atoms (2) tetrahedral structure of diamond (3) difference of crystalline structures (4) None of these

Description : Diamond is harder than graphite because of : (1) difference in layers of atoms (2) tetrahedral structure of diamond (3) difference of crystalline structures (4) None of these

Last Answer :  difference in layers of atoms

Apart from tetrahedral geometry another possible geometry for CH4 is square planar with four hydrogen atoms at the corners of the square and the carbon atom at the centre.Explain why CH4 is not square planar?

Description : Apart from tetrahedral geometry another possible geometry for CH4 is square planar with four hydrogen atoms at the corners of the square and the carbon atom at the centre.Explain why CH4 is not square planar?

Last Answer : Ans For square planar arrangement hybridization is dsp2 which is not possible with Carbon as it does not have d orbital with it

Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.

Description : Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.

Last Answer : It is a planar molecule.

The triple bond between the carbon atoms causes acetylene, C2H2, to have which of the following shapes? w) trigonal planar (pron: try-gon-al) x) linear y) tetrahedral z) trigonal bipyramidal

Description : The triple bond between the carbon atoms causes acetylene, C2H2, to have which of the following shapes? w) trigonal planar (pron: try-gon-al) x) linear y) tetrahedral z) trigonal bipyramidal

Last Answer : ANSWER: X -- LINEAR

The number of geometric isomers that can exist for square planar `[Pt(Cl)(py)(NH_(3))(NH_(2)OH)]^(+)` is (py=pyridine)

Description : The number of geometric isomers that can exist for square planar `[Pt(Cl)(py)(NH_(3))(NH_(2)OH)]^(+)` is (py=pyridine)

Last Answer : The number of geometric isomers that can exist for square planar `[Pt(Cl)(py)(NH_(3))(NH_(2)OH)]^(+)` is (py=pyridine) A. 2 B. 3 C. 4 D. 6

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

Apart from tertrahedral geometry ,another possible geometry for CH4 is square planar with the four H atoms at the corners of square and C atom at its centre. Explain why CH4 is not square planar.

Description : Apart from tertrahedral geometry ,another possible geometry for CH4 is square planar with the four H atoms at the corners of square and C atom at its centre. Explain why CH4 is not square planar.

Last Answer : Ans. In square planar geometry , the bond angle will be 90 ° which is less than bond angle in tetrahedral geometry ( 109.5 °).Therefore repulsive forces in square planar will be more and it will be less stable as compared to tetrahedral geometry.

Number of planar atoms in `SF_(6)` is

Description : Number of planar atoms in `SF_(6)` is

Last Answer : Number of planar atoms in `SF_(6)` is A. 7 B. 6 C. 5 D. 4

Which statement about the structure of benzene is not true? (a) The two Kekule structures of benzene are in equilibrium. (b) The carbon-carbon bond lengths in benzene are greater than the carbon-carbon double bonds in aliphatic compounds. (c) The molecular geometry of benzene is best described as planar. (d) The stability of benzene ring is much greater than the stability of 1,3,5- cycloheptatriene

Description : Which statement about the structure of benzene is not true? (a) The two Kekule structures of benzene are in equilibrium. (b) The carbon-carbon bond lengths in benzene are greater than the carbon- ... (d) The stability of benzene ring is much greater than the stability of 1,3,5- cycloheptatriene

Last Answer : The two Kekule structures of benzene are in equilibrium

Which of the following statements are correct concerning benzene? (a) Benzene is a planar molecule. (b) The six carbon-carbon bonds have the same length. (c) Benzene has alternating single and double bonds. (d) (a) and (b)

Description : Which of the following statements are correct concerning benzene? (a) Benzene is a planar molecule. (b) The six carbon-carbon bonds have the same length. (c) Benzene has alternating single and double bonds. (d) (a) and (b)

Last Answer : (a) and (b)

What is the hybridization and geometry of the carbonyl carbon in carboxylic acids and their derivatives? (a) sp3, tetrahedral (b) sp2, trigonal planar (c) sp2, tetrahedral (d) sp3, trigonal planar

Description : What is the hybridization and geometry of the carbonyl carbon in carboxylic acids and their derivatives? (a) sp3, tetrahedral (b) sp2, trigonal planar (c) sp2, tetrahedral (d) sp3, trigonal planar

Last Answer : sp2, trigonal planar

In Graphite layers are held together by

Description : In Graphite layers are held together by

Last Answer : Vander wall forces

Resonance structures of a molecule have (a) same arrangement of atoms (b) different arrangement of atoms (c) same number of paired electrons (d) different number of paired electrons

Description : Resonance structures of a molecule have (a) same arrangement of atoms (b) different arrangement of atoms (c) same number of paired electrons (d) different number of paired electrons

Last Answer : same arrangement of atoms same number of paired electrons

Which of the following statement about the peptide bond is true? (A) It is a carbon-carbon bond (B) It has cis hydrogen and oxygen groups (C) It is planar (D) It has rotational freedom

Description : Which of the following statement about the peptide bond is true? (A) It is a carbon-carbon bond (B) It has cis hydrogen and oxygen groups (C) It is planar (D) It has rotational freedom

Last Answer : Answer : B

The shape of a carbon molecule is (a) Linear (b) Planar (c) Cubical (d) Tetrahedral

Description : The shape of a carbon molecule is (a) Linear (b) Planar (c) Cubical (d) Tetrahedral

Last Answer : Ans:(d)

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.

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 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%.

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

Choose the correct option which represents the arrangement of atmospheric layers. (1) Ionosphere, Ecosphere, Mesosphere, Stratosphere, Troposphere (2) Ecosphere, Troposphere, Ionosphere, Mesosphere, Stratosphere (3) Mesosphere, Ionosphere. Eco-sphere, Troposphere, Stratosphare (4) Troposphare, Ionosphere, Ecosphere

Description : Choose the correct option which represents the arrangement of atmospheric layers. (1) Ionosphere, Ecosphere, Mesosphere, Stratosphere, Troposphere (2) Ecosphere, Troposphere, Ionosphere, ... Mesosphere, Ionosphere. Eco-sphere, Troposphere, Stratosphare (4) Troposphare, Ionosphere, Ecosphere

Last Answer : (4) Troposphare, Ionosphere, Ecosphere Explanation: From top to bottom, the Earth's atmosphere is divided into five main layers, the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere. ... km Mesosphere: 50 to 80 km Stratosphere: 12 to 50 km Troposphere: 0 to 12 km

Choose the correct option which represents the arrangement of atmospheric layers. (1) Ionosphere, Ecosphere, Mesosphere, Stratosphere, Troposphere (2) Ecosphere, Troposphere, Ionosphere, Mesosphere, Stratosphere (3) Mesosphere, Ionosphere. Ecosphere, Troposphere, Stratosphare (4) Troposphare, Ionosphere, Ecosphere

Description : Choose the correct option which represents the arrangement of atmospheric layers. (1) Ionosphere, Ecosphere, Mesosphere, Stratosphere, Troposphere (2) Ecosphere, Troposphere, Ionosphere, ... ) Mesosphere, Ionosphere. Ecosphere, Troposphere, Stratosphare (4) Troposphare, Ionosphere, Ecosphere

Last Answer : Troposphare, Ionosphere, Ecosphere

Can I use a 4b graphite pencil for regular drawing?

Description : Can I use a 4b graphite pencil for regular drawing?

Last Answer : Why not try it and see whether it suits your particular needs?

_____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.

The material used in the manufacture of lead pencil is – (1) Graphite (2) Lead (3) Carbon (4) Mica

Description : The material used in the manufacture of lead pencil is – (1) Graphite (2) Lead (3) Carbon (4) Mica

Last Answer : (1) Graphite Explanation: Pencils create marks via physical abrasion, leaving behind a trail of solid core material that adheres to a sheet of paper or other surface. They are noticeably distinct from ... of graphite mixed with a clay binder, leaving grey or black marks that can be easily erased.

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.

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.

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.

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

The material used in the manufacture of lead pencil is (1) Graphite (2) Lead (3) Carbon (4) Mica

Description : The material used in the manufacture of lead pencil is (1) Graphite (2) Lead (3) Carbon (4) Mica

Last Answer : Graphite

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 statements are false about benzene? (a) It is a planar molecule with bond angles 120°(b) It is immiscible with water forming the lower layer. (c) It can be converted into cyclohexane by hydrogenation at 200°C in the presence of Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene..

Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.

Last Answer : It is immiscible with water forming the lower layer

In many proteins the hydrogen bonding produces a regular coiled arrangement which is called as (A) β-Helix (B) α-Helix (C) Both (A) and (B) (D) Spiral

Description : In many proteins the hydrogen bonding produces a regular coiled arrangement which is called as (A) β-Helix (B) α-Helix (C) Both (A) and (B) (D) Spiral

Last Answer : Answer : B

In many proteins the hydrogen bonding produces a regular coiled arrangement called (A) α-helix (B) β-helix (C) Both (A) and (B) (D) None of these

Description : In many proteins the hydrogen bonding produces a regular coiled arrangement called (A) α-helix (B) β-helix (C) Both (A) and (B) (D) None of these

Last Answer : Answer : A

A solid in which there is no regular arrangement of molecules is a) Amorphous b) Crystalline c) Copper d) None of above

Description : A solid in which there is no regular arrangement of molecules is a) Amorphous b) Crystalline c) Copper d) None of above

Last Answer : a) Amorphous

In ammonia NH3 the hydrogen atoms orient themselves as far away as possible from each other because this arrangement .?

Description : In ammonia NH3 the hydrogen atoms orient themselves as far away as possible from each other because this arrangement .?

Last Answer : APEXminimizes the repulsion of electron groups

What formula represents the number types and arrangement of atoms?

Description : What formula represents the number types and arrangement of atoms?

Last Answer : This is a chemical formula.

What formula represents the number types and arrangement of atoms?

Description : What formula represents the number types and arrangement of atoms?

Last Answer : This is a chemical formula.

Metals, in general are of low strength and do not possess required physio-chemical and technological properties for a definite purpose. Alloys are therefore more than metals alone. Discuss the arrangement of atoms and Structures of alloys.

Description : Metals, in general are of low strength and do not possess required physio-chemical and technological properties for a definite purpose. Alloys are therefore more than metals alone. Discuss the arrangement of atoms and Structures of alloys.

Last Answer : Alloys are produced by melting or sintering two ore more metals, or metals and a non-metal, together. Alloys possess typical properties inherent in the metallic state. The chemical elements ... an alloy are its individual portions, each having a single structure with its characteristic features.

Organic compounds having same molecular formula with different structural arrangement of atoms in them is known as

Description : Organic compounds having same molecular formula with different structural arrangement of atoms in them is known as

Last Answer : isomerism.

The tiny block formed by the arrangement of a small group of atoms is called the

Description : The tiny block formed by the arrangement of a small group of atoms is called the

Last Answer : The tiny block formed by the arrangement of a small group of atoms is called the unit cell.

Which of the following compounds have planar molecules?(a) 1,3-Butadiene (b) Dimethyl ether (c) 1-Butene (d) Allene

Description : Which of the following compounds have planar molecules? (a) 1,3-Butadiene (b) Dimethyl ether (c) 1-Butene (d) Allene

Last Answer : 1,3-Butadiene

Propadiene, CH2=C=CH2, is (a) a planar compound (b) a cumulated diene (c) an isolated diene (d) a conjugated diene

Description : Propadiene, CH2=C=CH2, is (a) a planar compound (b) a cumulated diene (c) an isolated diene (d) a conjugated diene

Last Answer : a cumulated diene

What is the predicted shape, bond angle, and hybridization for CH3+? (a) trigonal planar, 120°, sp2 (b) trigonal planar, 120°, sp3 (c) trigonal planar, 109.5°, sp2 (d) trigonal pyramidal, 120°, sp2

Description : What is the predicted shape, bond angle, and hybridization for CH3+? (a) trigonal planar, 120°, sp2 (b) trigonal planar, 120°, sp3 (c) trigonal planar, 109.5°, sp2 (d) trigonal pyramidal, 120°, sp2

Last Answer : trigonal planar, 120°, sp2

Which of the following compounds have planar molecules? (a) ethyl alcohol (b) formaldehyde (c) diethyl ether (d) 1,3-butadiene

Description : Which of the following compounds have planar molecules? (a) ethyl alcohol (b) formaldehyde (c) diethyl ether (d) 1,3-butadiene

Last Answer : 1,3-butadiene formaldehyde

Which of the following is a planar molecule? (a) Formaldehyde (b) Acetone (c) Formic acid (d) Acetic acid

Description : Which of the following is a planar molecule? (a) Formaldehyde (b) Acetone (c) Formic acid (d) Acetic acid

Last Answer : Formaldehyde

Sp3d2 hybridization of central atom of a molecule would lead to............ geometry. a) square planar b) Tetrahedral c) Trigonal bipyramidal d) Octahedral

Description : Sp3d2 hybridization of central atom of a molecule would lead to............ geometry. a) square planar b) Tetrahedral c) Trigonal bipyramidal d) Octahedral

Last Answer : d) Octahedral

Planar Platinum compounds are being investigated in the treatment of cancer. Name the isomers of dichlorodiamineplatinum(II) (pron: die-klor-o-di-a-MIN-e-plat-i-num two)?

Description : Planar Platinum compounds are being investigated in the treatment of cancer. Name the isomers of dichlorodiamineplatinum(II) (pron: die-klor-o-di-a-MIN-e-plat-i-num two)?

Last Answer : ANSWER: CIS AND TRANS (DICHLORODIAMINEPLATINUM (II)