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
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
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)
Description : The delocalized π system in benzene is formed by a cyclic overlap of 6 orbitals. (a) s (b) p (c) sp (d) sp2
Last Answer : p
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
Description : Where are the two lone pairs of electrons of the oxygen atom in an alcohol molecule located? (a) in two p orbitals (b) in two sp orbitals (c) in two sp2 orbitals (d) in two sp3 orbitals
Last Answer : in two sp3 orbitals
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
Description : Pyridine is less basic than trimethylamine because the lone-pair of electrons on N-atom in pyridine resides in (a) sp2 hybrid orbital (b) sp hybrid orbital (c) sp3 hybrid orbital (d) p-orbital
Last Answer : sp2 hybrid orbita
Description : Which of the following is not characteristic of a p bond? (a) A p bond results from lateral overlap of atomic orbitals (b) A p bond may be formed by the overlap of p - or d - orbitals (c) p bonds are obtained from hybrid orbitals (d) p bonds is formed when a bond already exists
Last Answer : Ans:(c)
Description : What bond angle is associated with sp3 (read: S - P - hybrid orbitals?
Last Answer : ANSWER: 109.5 DEGREES
Description : All carbon atoms in anthracene are (a) sp hybridized (b) sp3 hybridized (c) sp2 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
Description : The carbon atoms in a benzene ring are : (a) sp hybridized (b) sp3 hybridized (c) sp2 hybridized (d) None of these
Description : What is the hybridization of the carbon atom in CH3NH2? (a) 3sp3 (b) sp (c) sp2 (d) sp3
Last Answer : sp3
Description : The carbon atom of a carbonyl group is (a) sp hybridized (b) sp2 hybridized (c) sp3 hybridized (d) None of these
Description : What is the hybridization of the central carbon of allene (1,2-propadiene)? (a) sp (b) sp2 (c) sp3 (d) p
Last Answer : sp
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
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
Description : Compound in which carbons use only sp3 hybrid orbitals for bond formation is (a) CH3CH2CH3 (b) CH3C≡CH (c) CH3CH=CH2 (d) CH2=CH—CH=CH2
Last Answer : CH3CH2CH3
Description : What is the hybridization of the nitrogen atom in CH3NH2? (a) sp (b) sp2 (c) sp3 (d) s-sp3
Description : What is the hybridization of the carbonyl oxygen in carboxylic acids? (a) sp (b) sp2 (c) sp3 (d) s-sp2
Last Answer : sp2
Description : The lone-pair electrons of the methyl anion occupy a __________ orbital. (a) s (b) sp (c) sp2 (d) sp3
Description : The ‘N’ atom in pyridine is (a) sp3 hybridized (b) sp2 hybridized (c) sp hybridized (d) cannot be predicted
Description : The hybridization of nitrogen in an amine is (a) sp (b) sp3 (c) sp2 (d) sp4
Description : What is the hybridization of the oxygen atom in CH3CH2OH? (a) sp (b) 4sp3 (c) sp2 (d) sp3
Description : What bond angle is associated with sp hybrid orbitals
Last Answer : ANSWER: 180 DEGREES
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;
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
Description : For which molecule can the bonding be described in terms of sp3 hybrid orbitals of the central atom? w) CH4 x) SF6 y) BF3 z) PCL5
Last Answer : ANSWER: B -- CH4
Description : Pyrrole is less basic than pyridine because the lone-pair of electrons on Natom in pyrrole (a) is part of the delocalized π molecular orbital. (b) is not part of the delocalized π molecular orbital. (c) resides in sp2 hybrid orbital (d) resides in sp hybrid orbital
Last Answer : is part of the delocalized π molecular orbital.
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
Description : sp3 Why is the angle between hybrid orbitals 109 degrees 26 ' ?
Last Answer : : A s orbital and three p orbitals of the conjugate layer overlap and form a sp3 hybrid orbital. The balanced sp3 orbital is directed along the four angles of any regular tetrahedron. And between the orbitals the angle 109 ৮ 26 ' is present and the structure is quadratic.
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
Description : What bond angle is associated with sp2 hybrid orbital
Last Answer : ANSWER: 120 DEGREES
Description : In which of the following central atom makes use of `sp^(3)` hybrid orbitals
Last Answer : In which of the following central atom makes use of `sp^(3)` hybrid orbitals A. `SO_(2)` B. `SO_(3)` C. `H_(2)S` D. `H_(2)O`
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°
Description : Pi bonds are formed by the overlap of what specific type of orbitals:
Last Answer : ANSWER: UNHYBRIDIZED P ORBITALS
Description : Compare the following complexes with respect to their shape, magnetic behaviour and the hybrid orbitals involved : (i) [CoF4]2- (ii) [Cr(H2O)2(C2O4)2]– (iii) [Ni(CO)4] (Atomic number : Co = 27, Cr = 24, Ni = 28) -Chemistry
Last Answer : (i) [COF4]2_ : Tetrafluorido cobalt (III) ion Coordination number = 4 Shape = Tetrahedral Hybridisation = sp3 Important Questions for Class 12 Chemistry Chapter 9 Coordination Compounds Class 12 Important Questions 7
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
Description : 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°.
Last Answer : The H–C–H bond angles are approximately 109.5°.
Description : Two hybrid orbitals have a bond angle of `120^(@)`. The percentage of p character in the hybrid orbital is nearly :-
Last Answer : Two hybrid orbitals have a bond angle of `120^(@)`. The percentage of p character in the hybrid orbital is nearly ... 25%` B. `33%` C. `50%` D. `66%`
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.
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.
Description : Carbon-carbon double bonds consist of : (a) one σ bond, one π bond (b) two σ bonds, one π bond (c) one σ bond, two π bonds (d) two σ bonds, two π bonds
Last Answer : one σ bond, one π bond
Description : Hyperconjugation involves overlap of which of the following orbitals?
Last Answer : Hyperconjugation involves overlap of which of the following orbitals? A. `sigma-sigma` B. `sigma-p` C. `p-p` D. `pi-pi`
Description : Classify the following compounds containing double bond and triple bond – Ethyne, benzene, Butyne, pentene
Last Answer : Double bond: Benzene, pentene Triple bond: Ethyne, Butyne
Description : How does covalent bond form in terms of orbital overlap concept?
Last Answer : Ans. When two half filled orbitals overlap ,covalent bond forms .
Description : Acetone contains (a) nine σ bonds plus one π bond (b) ten σ bonds (c) eight σ bonds plus two π bonds (d) nine π bonds plus one σ bond
Last Answer : nine σ bonds plus one π bond
Description : 1-Buten-3-yne has (a) six σ and four π bonds (b) seven σ and three π bonds (c) eight σ and two π bonds (d) nine σ and one π bond
Last Answer : seven σ and three π bonds
Description : In propyne there are (a) six σ bonds and two π bonds (b) seven σ bonds and one π bond (c) six σ bonds and one π bond (d) eight σ bonds
Last Answer : six σ bonds and two π bonds