Which of the following statements about ethene, C2H4, is incorrect? (a) The H–C–H bond angles are approximately 109.5°. (b) There is a total of five sigma bonds. (c) The carbon atoms are sp2 hybridized. (d) The H–C–H bond angles are approximately 120°.

Which of the following statements about ethene, C2H4, is incorrect?
(a) The H–C–H bond angles are approximately 109.5°.
(b) There is a total of five sigma bonds.
(c) The carbon atoms are sp2 hybridized.
(d) The H–C–H bond angles are approximately 120°.
by

1 Answer

Answer :

The H–C–H bond angles are approximately 109.5°.
by

Related questions

Which statement about the carbonyl group is NOT true? (a) The carbonyl carbon is sp2 hybridized. (b) The bond angles among the three atoms attached to the carbonyl carbon are 120°. (c) The three atoms attached to the carbonyl carbon form a nonplanar geometry. (d) The carbonyl group forms resonance structures.

Description : Which statement about the carbonyl group is NOT true? (a) The carbonyl carbon is sp2 hybridized. (b) The bond angles among the three atoms attached to the carbonyl carbon are 120°. (c) ... attached to the carbonyl carbon form a nonplanar geometry. (d) The carbonyl group forms resonance structures.

Last Answer : The three atoms attached to the carbonyl carbon form a nonplanar geometry

Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized

Description : Which of the following statements about propene, CH3CH=CH2, is correct? (a) All nine atoms lie in the same plane. (b) The compound has a cis and trans isomer. (c) There is a total of eight sigma bonds. (d) All the carbon atoms are sp2 hybridized

Last Answer : There is a total of eight sigma bonds.

Which of following statements is false about propane? (a) all bond angles are 109.5° (b) each carbon is sp3 hybridized (c) the compound is combustible (d) the compound undergoes polymerization to give polypropylene.

Description : Which of following statements is false about propane? (a) all bond angles are 109.5° (b) each carbon is sp3 hybridized (c) the compound is combustible (d) the compound undergoes polymerization to give polypropylene.

Last Answer : the compound undergoes polymerization to give polypropylene.

Which of the following statements is not true about propyne, HC–C≡CH3? (a) It contains six sigma bonds. (b) It contains three pi bonds. (c) The H–C–H bond angle is about 109.5°. (d) The C–C–C bond angle is 180°.

Description : Which of the following statements is not true about propyne, HC–C≡CH3? (a) It contains six sigma bonds. (b) It contains three pi bonds. (c) The H–C–H bond angle is about 109.5°. (d) The C–C–C bond angle is 180°.

Last Answer : It contains three pi bonds

Triethylamine [(CH3CH2)3N] is a molecule in which the nitrogen atom is __________ hybridized and the CNC bond angle is __________. (a) sp2; >109.5° (b) sp2; <109.5° (c) sp3; >109.5°(d) sp3; <109.5°

Description : Triethylamine [(CH3CH2)3N] is a molecule in which the nitrogen atom is __________ hybridized and the CNC bond angle is __________. (a) sp2; >109.5° (b) sp2; 109.5° (d) sp3;

Last Answer : sp3;

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

The bond angle between carbon atoms in cyclohexane is (a) 60° (b) 90° (c) 109.5° (d) 120°

Description : The bond angle between carbon atoms in cyclohexane is (a) 60° (b) 90° (c) 109.5° (d) 120°

Last Answer : 109.5°

The H–C–C bond angle in ethane is (a) 60° (b) 109.5° (c) 120° (d) 118°28′

Description : The H–C–C bond angle in ethane is (a) 60° (b) 109.5° (c) 120° (d) 118°28′

Last Answer : 109.5°

Which of the following is closest to the C–O–C bond angle in CH3–O–CH3? (a) 180° (b) 120° (c) 109.5° (d) 90°

Description : Which of the following is closest to the C–O–C bond angle in CH3–O–CH3? (a) 180° (b) 120° (c) 109.5° (d) 90°

Last Answer : 109.5°

What is bond angle between the hybrid orbitals in methane? (a) 180° (b) 120° (c) 109.5° (d) 115.5°

Description : What is bond angle between the hybrid orbitals in methane? (a) 180° (b) 120° (c) 109.5° (d) 115.5°

Last Answer : 109.5°

The carbon atoms involved in the double bond of an alkene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Description : The carbon atoms involved in the double bond of an alkene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Last Answer : sp2 hybridized

All carbon atoms in anthracene are (a) sp hybridized (b) sp3 hybridized (c) sp2 hybridized (d) None of these

Description : All carbon atoms in anthracene are (a) sp hybridized (b) sp3 hybridized (c) sp2 hybridized (d) None of these

Last Answer : sp2 hybridized

All carbon atoms in naphthalene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Description : All carbon atoms in naphthalene are (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Last Answer : sp2 hybridized

The carbon atoms in a benzene ring are : (a) sp hybridized (b) sp3 hybridized (c) sp2 hybridized (d) None of these

Description : The carbon atoms in a benzene ring are : (a) sp hybridized (b) sp3 hybridized (c) sp2 hybridized (d) None of these

Last Answer : sp2 hybridized

1,2-Butadiene has (a) only sp hybridized carbon atoms (b) only sp2 hybridized carbon atoms (c) only sp3 hybridized carbon atoms (d) sp, sp2, sp3 hybridized carbon atoms

Description : 1,2-Butadiene has (a) only sp hybridized carbon atoms (b) only sp2 hybridized carbon atoms (c) only sp3 hybridized carbon atoms (d) sp, sp2, sp3 hybridized carbon atoms

Last Answer : sp, sp2, sp3 hybridized carbon atoms

When the carbon atom is sp2 hybridized in a compound, it is bonded to (a) 2 other atoms (b) 4 other atoms (c) 3 other atoms (d) 5 other atoms

Description : When the carbon atom is sp2 hybridized in a compound, it is bonded to (a) 2 other atoms (b) 4 other atoms (c) 3 other atoms (d) 5 other atoms

Last Answer : 3 other atoms

Which of the following contain sp2 hybridized carbon atoms? w) alkanes x) alkenes y) alkynes z) cycloalkanes

Description : Which of the following contain sp2 hybridized carbon atoms? w) alkanes x) alkenes y) alkynes z) cycloalkanes

Last Answer : ANSWER: X -- ALKENES

Pi bonds are formed by the overlap of: w) unhybridized p orbitals x) sp2 hybridized orbitals y) sp hybridized orbitals z) unhybridized s orbitals

Description : Pi bonds are formed by the overlap of: w) unhybridized p orbitals x) sp2 hybridized orbitals y) sp hybridized orbitals z) unhybridized s orbitals

Last Answer : ANSWER: W -- UNHYBRIDIZED P ORBITALS

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 carbon atom of a carbonyl group is (a) sp hybridized (b) sp2 hybridized(c) sp3 hybridized(d) None of these

Description : The carbon atom of a carbonyl group is (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these

Last Answer : sp2 hybridized

In 2-butene, which of the following bonds prevents the atoms at each end of the bond from rotating with respect to each other. Is it an: w) ionic bond x) sigma bond y) strong bond z) double bond

Description : In 2-butene, which of the following bonds prevents the atoms at each end of the bond from rotating with respect to each other. Is it an: w) ionic bond x) sigma bond y) strong bond z) double bond

Last Answer : ANSWER: Z -- DOUBLE BOND

The bond angles associated with the hybrid orbitals of a carbon involved in a triple bond is (a) 180° (b) 120° (c) 109° (d) 45

Description : The bond angles associated with the hybrid orbitals of a carbon involved in a triple bond is (a) 180° (b) 120° (c) 109° (d) 45

Last Answer : 180

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

Explain why the water molecule has a bent shape and a bond angle less than 109.5°The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together

Description : Explain why the water molecule has a bent shape and a bond angle less than 109.5° The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together

Last Answer : The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together

The bond angle between carbon atoms in cyclohexane is (a) 109°28' (b) 60° (c) 90° (d) 120°

Description : The bond angle between carbon atoms in cyclohexane is (a) 109°28' (b) 60° (c) 90° (d) 120°

Last Answer : 109°28'

The ‘N’ atom in pyridine is (a) sp3 hybridized (b) sp2 hybridized (c) sp hybridized (d) cannot be predicted

Description : The ‘N’ atom in pyridine is (a) sp3 hybridized (b) sp2 hybridized (c) sp hybridized (d) cannot be predicted

Last Answer : sp2 hybridized

Which of the following statements is correct for a saturated alkyl halide? (a) the C–X bond results from overlap of the s orbital of carbon and the p orbital of the halogen (X) (b) the C–X bond results from overlap of the p orbital of carbon and the p orbital of the halogen (X) (c) the C–X bond results from overlap of the sp3 orbital of carbon and the p orbital of the halogen (X) (d) the C–X bond results from overlap of the sp2 orbital of carbon and the p orbital of the halogen (X)

Description : Which of the following statements is correct for a saturated alkyl halide? (a) the C-X bond results from overlap of the s orbital of carbon and the p orbital of the halogen (X) (b) the C-X bond ... the C-X bond results from overlap of the sp2 orbital of carbon and the p orbital of the halogen (X)

Last Answer : the C–X bond results from overlap of the sp3 orbital of carbon and the p orbital of the halogen (X)

What is the order of C-H bond length in C2H6 and C2H4 and C2H2 ?

Description : What is the order of C-H bond length in C2H6 and C2H4 and C2H2 ?

Last Answer : c2h6>c2h4 >c2h2

The H–C–H bond angle in ethylene is (a) 60° (b) 120° (c) 90° (d) 180°

Description : The H–C–H bond angle in ethylene is (a) 60° (b) 120° (c) 90° (d) 180°

Last Answer : 120°

Which of the following describes a triple bond? (a) two sigma bonds and two pi bonds (b) one sigma bond and one pi bond (c) two sigma bonds and one pi bond (d) one sigma bond and two pi bonds

Description : Which of the following describes a triple bond? (a) two sigma bonds and two pi bonds (b) one sigma bond and one pi bond (c) two sigma bonds and one pi bond (d) one sigma bond and two pi bonds

Last Answer : one sigma bond and two pi bonds

A triple bond consists of (a) 2 sigma bonds and 1 pi bond (b) 3 sigma bonds (c) 1 sigma bond and 2 pi bonds (d) 3 pi bonds

Description : A triple bond consists of (a) 2 sigma bonds and 1 pi bond (b) 3 sigma bonds (c) 1 sigma bond and 2 pi bonds (d) 3 pi bonds

Last Answer : 1 sigma bond and 2 pi bonds

A triple bond consists of how many pi bonds and how many sigma bonds?

Description : A triple bond consists of how many pi bonds and how many sigma bonds?

Last Answer : ANSWER: ONE SIGMA BOND AND TWO PI BONDS

A triple bond consists of: w) three sigma bonds x) three pi bonds y) two sigma bonds and one pi bond z) one sigma bond and two pi bonds

Description : A triple bond consists of: w) three sigma bonds x) three pi bonds y) two sigma bonds and one pi bond z) one sigma bond and two pi bonds

Last Answer : ANSWER: Z -- ONE SIGMA BOND AND TWO PI BONDS

The N–H bond in the ammonium ion, NH4+, is formed by the overlap of what two orbitals? (a) sp3–sp3 (b) sp3–sp2 (c) sp2–sp2 (d) sp3–s

Description : The N–H bond in the ammonium ion, NH4+, is formed by the overlap of what two orbitals? (a) sp3–sp3 (b) sp3–sp2 (c) sp2–sp2 (d) sp3–s

Last Answer : sp3–s

What orbitals overlap to create the H–C bond in CH3+? (a) sp3–sp3 (b) sp2–sp3 (c) s–p (d) s–sp2

Description : What orbitals overlap to create the H–C bond in CH3+? (a) sp3–sp3 (b) sp2–sp3 (c) s–p (d) s–sp2

Last Answer : s–sp2

Catenation is a property of the carbon atom which describes its ability to (a) bond with other carbon atoms (b) form double and triple bonds (c) exist in plant and animal form (d) form bonds in its ground state

Description : Catenation is a property of the carbon atom which describes its ability to (a) bond with other carbon atoms (b) form double and triple bonds (c) exist in plant and animal form (d) form bonds in its ground state

Last Answer : bond with other carbon atoms

What is the hybridization of the carbon atoms numbered 1 and 2 respectively in the following structure? (a) sp3, sp2 (b) sp2, sp2 (c) sp, sp (d) sp2, sp

Description : What is the hybridization of the carbon atoms numbered 1 and 2 respectively in the following structure? (a) sp3, sp2 (b) sp2, sp2 (c) sp, sp (d) sp2, sp

Last Answer : sp2, sp

What two atomic orbitals or hybrid atomic orbitals overlap to form the carbon-carbon σ bond in ethyne? (a) sp3–sp3 (b) sp2–sp2 (c) s–s (d) sp–sp

Description : What two atomic orbitals or hybrid atomic orbitals overlap to form the carbon-carbon σ bond in ethyne? (a) sp3–sp3 (b) sp2–sp2 (c) s–s (d) sp–sp

Last Answer : sp–sp

How many sigma and pi bonds are there in a triple bond?

Description : How many sigma and pi bonds are there in a triple bond?

Last Answer : 1 sigma, 2 pi bonds in a triple bond.

How many sigma and pi bonds are there in a triple bond?

Description : How many sigma and pi bonds are there in a triple bond?

Last Answer : 1 sigma, 2 pi bonds in a triple bond.

In double bond, how many sigma and Pi bonds are present in it ?

Description : In double bond, how many sigma and Pi bonds are present in it ?

Last Answer : Double bond = 1 Sigma bond and one Pi bond Among sigma and Pi bonds which is the stronger one Sigma bond is Stronger than pi bond

Arrange the following in the increasing order of C-C bond length- C2H6 , C2H4, C2H2

Description : Arrange the following in the increasing order of C-C bond length- C2H6 , C2H4, C2H2

Last Answer : Ans. C2H2 < C2H4 < C2H6

You are flying at a constant FL 290 and a constant mach number. The total temperature increases by 5°. The CAS will: a. Remain approximately constant b. Increase by 10 kts c. Decrease by 10 kts d. Will increase or decrease depending on whether you are above or below ISA

Description : You are flying at a constant FL 290 and a constant mach number. The total temperature increases by 5°. The CAS will: a. Remain approximately constant b. Increase by 10 kts c. Decrease by 10 kts d. Will increase or decrease depending on whether you are above or below ISA

Last Answer : a. Remain approximately constant

You are flying at a constant FL 290 and a constant mach number. The total temperature increases by 5°. The CAS will: a. Remain approximately constant b. Increase by 10 kts c. Decrease by 10 kts d. Will increase or decrease depending on whether you are above or below ISA

Description : You are flying at a constant FL 290 and a constant mach number. The total temperature increases by 5°. The CAS will: a. Remain approximately constant b. Increase by 10 kts c. Decrease by 10 kts d. Will increase or decrease depending on whether you are above or below ISA

Last Answer : a. Remain approximately constant

Which of the following describes the orientation of bonds in an sp3 hybridized atom? w)triagonal x)linear y)tetrahedral z)planar

Description : Which of the following describes the orientation of bonds in an sp3 hybridized atom? w)triagonal x)linear y)tetrahedral z)planar

Last Answer : ANSWER: Y -- TETRAHEDRAL

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.

Description : If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.

Last Answer : (b) 2.5 meters

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.

Description : If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.

Last Answer : (c) 2.2 meters

Which of the following statements is correct? (a) Adenine pairs with thymine through two H-bonds. (b) Adenine pairs with thymine through one H-bond. (c) Adenine pairs with thymine through three H-bonds. (d) Adenine does not pair with thymine

Description : Which of the following statements is correct? (a) Adenine pairs with thymine through two H-bonds. (b) Adenine pairs with thymine through one H-bond. (c) Adenine pairs with thymine through three H-bonds. (d) Adenine does not pair with thymine

Last Answer : ) Adenine pairs with thymine through two H-bonds.

The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Description : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Last Answer : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Description : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is

Last Answer : The summation of total no. of lone pairs and `sigma` bonds in in species (A,B and C) is