Description : The angle between the bonding orbitals of a molecules `AX_(3)` with zero dipole moment is
Last Answer : The angle between the bonding orbitals of a molecules `AX_(3)` with zero dipole moment is A. `120^(º)` B. `109^(º)` C. `104^(º)` D. `180^(º)`
Description : What is dipole dipole bonding?
Last Answer : too
Description : Arrange the following types of interactions in correct order of their increasing strength : Covalent, hydrogen bonding, Vander Waals, dipole dipole
Last Answer : Vander Waals < dipole dipole < hydrogen bonding < covalent.
Description : What type of intermolecular interactions does (CH3CH2)2NH undergo? (a) induced dipole-induced dipole (b) dipole-dipole (c) hydrogen bonding (d) all of these
Last Answer : all of these
Description : What is the strongest intermolecular force present in liquid ethanol? (a) induced dipole-induced dipole (b) dipole-dipole, specifically hydrogen bonding (c) dipole-dipole, but not hydrogen bonding (d) ion-dipole
Last Answer : dipole-dipole, specifically hydrogen bonding
Description : Which of the following is the strongest interaction? (a) a covalent bond (b) dipole-dipole interactions (c) hydrogen bonding (d) van der Waals
Last Answer : a covalent bond
Description : Which force is most important in allowing ammonia, NH3, to dissolve in water? A hydrogen bonding B dipole-induced dipole C ion-dipole D dipole-dipole E ionic
Last Answer : A hydrogen bonding
Description : The boiling points of the halogens increase going from F2 to I2. What type of intermolecular forces are responsible for this trend? w) permanent dipole x) hydrogen bonding y) ion-ion attraction z) London dispersion forces
Last Answer : ANSWER: Z -- LONDON DISPERSION FORCES
Description : Which orientation of an electric dipole in a uniform electric field would correspond to stable equilibrium ? -General Knowledge
Last Answer : When dipole moment vector is parallel to electric field vector P→‖E→
Description : In which type of molecule, the dipole moment may be nonzero (L `to` Lone pair ) :-
Last Answer : In which type of molecule, the dipole moment may be nonzero (L `to` Lone pair ) :- A. `AB_(2)L_(2)` B. `AB_(2)L_(3)` C. `AB_(4)L_(2)` D. `AB_(4)`
Description : Compare dipole moment of the following `CH_(3)-CH_(2)-C=CH , CH_(3)-C=C-CH_(3)`
Last Answer : Compare dipole moment of the following `CH_(3)-CH_(2)-C=CH , CH_(3)-C=C-CH_(3)`
Description : Which of the following compounds have non zero dipole moment.
Last Answer : Which of the following compounds have non zero dipole moment. A. `C Cl_(4)` B. C. D.
Description : Define the terms : a. Polarizability b. Hydrogen bond c. Aqueous tension d. Dipole moment
Last Answer : Define the terms : a. Polarizability b. Hydrogen bond c. Aqueous tension d. Dipole moment
Description : Which of the following fluorides of Xe has zero dipole moment ?
Last Answer : Which of the following fluorides of Xe has zero dipole moment ? A. `XeF_(2)` B. `XeF_(6)` C. `XeF_(4)` D. Both (1) & (3)
Description : The fluoride of Xenon with zero dipole moment is
Last Answer : The fluoride of Xenon with zero dipole moment is A. `XeF_(6)` B. `XeO_(3)` C. `XeF_(4)` D. `XeO_(2)F_(2)`
Description : Find Out an expression for electric intensity at any point due to an electric dipole.
Last Answer : Find Out an expression for electric intensity at any point due to an electric dipole.
Description : In which of he following situations would dipole-dipole forces be significant?
Last Answer : When molecules have permanent dipole moments
Description : Is NaF a dipole dipole?
Last Answer : Sodium fluoride is an ionic compound.
Description : What is net dipole?
Last Answer : The net dipole is the sum of all moment dipoles from a chemical molecule.
Description : Which of these molecules has an overall dipole mome?
Last Answer : Which of these molecules has an overall dipole mome
Description : Why are dipole forces of attraction not found in halogen molecule.?
Last Answer : Feel Free to Answer
Description : Is HBr dipole-dipole?
Last Answer : Hydrogen bromide has a covalent bond.
Description : What is a molecular dipole mpment?
Last Answer : What is the answer ?
Description : What kind of force is a dipole dipole of force?
Last Answer : Dipole-dipole interactions are of electrostatic nature.
Description : What is a bond dipole?
Last Answer : The bond dipole moment measure the polarity of a chemical bond.
Description : Which kind of force is a dipole force?
Last Answer : Intermolecular attraction
Description : Which molecule has a dipole moment?
Last Answer : H2S
Description : Which kind of force is a dipole- dipole force?
Description : If a polar molecule has a charge of 4.8 * 10^ (-10) and internuclear distance is 1A then what is its dipole moment ?
Last Answer : 4.8 * 10-10 e.s.u * 1A0 4.8 * 10-10 * 10-8 4.8 * 10-18 e.s.u – Cm = 4.8 Debye Give the mathematical expression to calculate or measure the percentage of ionic Character. % of Ionic Character = (Observed dipole moment / Dipole moment of 100% ionic bond)*100
Description : What is dipole ?
Last Answer : In polar covalent molecule, one atom gets positive charge and the other one gets negative charge hence called dipole.
Description : Water is a good solvent of ionic salts because - (1) It has no colour (2) It has a boiling point (3) It has a high dipole moment (4) It has a high specific heat
Last Answer : (3) It has a high dipole moment
Description : When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? (1) Hydrogen bond formation (2) Vander waals forces (3) Covalent attraction (4) Dipole interaction
Last Answer : (1) Hydrogen bond formation Explanation: When two ice cubes are pressed together, they join to form one cube due to hydrogen bond.
Description : Which antenna is not grounded at one end? A. Hertz B. Marconi C. Dipole D. Whip
Last Answer : C. Dipole
Description : Which antenna is not a wideband? A. Discone B. Folded dipole C. Helical D. Marconi
Last Answer : D. Marconi
Description : The effect of adding parasitic elements of a Hertz dipole is to A. make the antenna more omnidirectional B. reduce its resonant frequency C. increase the antenna’s power gain D. All of these
Last Answer : C. increase the antenna’s power gain
Description : The input terminal impedance at the center of a folded dipole antenna is A. 72 Ω B. 300 Ω C. 50 Ω D. 73 Ω
Last Answer : B. 300 Ω
Description : What is the gain of an antenna over a half-wavelength dipole when it has 6 dB gain over an isotropic radiator? A. 6.0 dB B. 8.1 dB C. 3.9 dB D. 10.0 dB
Last Answer : C. 3.9 dB
Description : In horizontal-dipole antenna, the polarization is A. in the vertical direction B. in the horizontal direction C. circular D. measured at the center of the antenna
Last Answer : B. in the horizontal direction
Description : What antenna radiates equally in all directions? A. Vertical antenna B. isotropic antenna C. Horizontal antenna D. Dipole antenna
Last Answer : B. isotropic antenna
Description : In order to get maximum radiation to all surrounding points in the horizontal plane, the antenna used is a A. vertical loop B. vertical quarter-wavelength rod C. array which includes parasitic elements D. a horizontal Hertz dipole
Last Answer : B. vertical quarter-wavelength rod
Description : If the length of a Hertz dipole is decreased A. its resonant frequency will be lowered its distributed inductance will be increased B. its distributed inductance will be decreased C. its ... frequency will be increased D. its distributed capacitance between the antenna and ground will be increased.
Last Answer : C. its resonant frequency will be increased
Description : How is it possible to lower the resonant frequency of Hertz dipole antenna? A. By reducing the frequency at the transmitter B. By connecting a capacitor in series with the antenna C. By the connecting a resistor in series with the antenna D. By connecting an inductor in series with the antenna
Last Answer : D. By connecting an inductor in series with the antenna
Description : What is the capture area of a dipole operated at 75 MHz? A. 4 mm B. 2 m2 C. 2.088 m2 D. 4.088 m2
Last Answer : C. 2.088 m2
Description : The frequency of operation of a dipole antenna cut to a length of 3.4 m. A. 88 MHz B. 44 MHz C. 22 MHz D. 11 MHz
Last Answer : B. 44 MHz
Description : An antenna which is one-tenth wavelength long A. Hertzian dipole B. Loop antenna C. Marconi antenna D. Elementary doublet
Last Answer : D. Elementary doublet
Description : An antenna with unity gain A. Rhombic B. Half-wave dipole C. Isotropic D. Whip
Last Answer : C. Isotropic
Description : What is the theoretical gain of a Hertzian dipole? A. 1.76 dB B. 2.15 dB C. 3 dB D. 0 dB
Last Answer : A. 1.76 dB
Description : What is the radiation characteristic of a dipole antenna? A. Omnidirectional B. Bidirectional C. Unidirectional D. Hemispherical
Last Answer : B. Bidirectional
Description : Which antenna is a properly terminated? A. Marconi B. Rhombic C. Dipole D. Yagi-Uda
Last Answer : B. Rhombic