Which statement is true?
(a) Resonance hybrids are inherently unstable.
(b) Resonance hybrids are more stable than any individual resonance form.
(c) Resonance hybrids are averages of all resonance forms resembling the less
stable forms.
(d) Resonance hybrids are averages of all resonance forms resembling the more
stable forms.

1 Answer

Answer :

Resonance hybrids are averages of all resonance forms resembling the more
stable forms.

Related questions

Description : Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta ... the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Last Answer : the more stable resonance hybrid occurs with meta attachment of the electrophile.

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 : The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable

Last Answer : Answer: Option C

Description : Why does a H+ ion attacking a carbon-carbon double bond add to the carbon with the least number of substituents? (a) the reaction is resonance stabilized. (b) the hybrid geometry favors this ... tends to attack stable centers of negative charge. (d) a more stable carbonium ion is generated.

Last Answer : a more stable carbonium ion is generated.

Description : Which of the following is incorrect? (a) Resonance stabilization is the extra stability a compound gains from having delocalized electrons. (b) Delocalized electrons destabilize a compound. (c) The greater ... stable resonance contributors, the greater is the resonance stabilization. (d) (a) and (c)

Last Answer : Delocalized electrons destabilize a compound

Description : Which of the following is/are acceptable reasons for the transfusion of red blood cells based on currently available data? A. Rapid, acute blood loss with unstable vital signs but no available ... increase wound healing. D. A hematocrit of 26% in an otherwise stable, asymptomatic patient.

Last Answer : Answer: AB DISCUSSION: Currently accepted guidelines for the transfusion of packed red blood cells include acute ongoing blood loss, as might occur in an injured patient, and the development of ... not be given based solely or predominantly on a numerical value such as a hematocrit of 28%

Description : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) Stable nucleus d) Unstable nucleus

Last Answer : Radioactivity is due to a) Stable electronic configuration b) Unstable electronic configuration c) ... C. stable nucleus D. unstable nucleus

Description : What During blank an unstable isotope breaks down into a stable isotope?

Last Answer : It is by radioactive decay that unstable isotopes break down into stable isotopes.

Description : What is a way to determine age of fossil by comparing number of stable isotopes to number of unstable isotopes using half life?

Last Answer : Carbon decay or carbon dating

Description : Radio activity is due to – (1) unstable nucleus (2) stable nucleus (3) stable electronic configuration (4) stable electronic configuration

Last Answer : (1) unstable nucleus Explanation: Radioactivity is caused by unstable nuclei trying to become stable by emitting particles and or energy. The nuclei of radioactive substances are unstable due to an unstable ratio of protons to neutrons.

Description : Nuclear radiation is emitted by those elements whose: A. molecules are stable B. molecules are unstable C. nuclei are stable D. nuclei are unstable (Answer)

Last Answer : D. nuclei are unstable (Answer)

Description : Transition state structure of the substrate formed during an enzymatic reaction is (a) transient and unstable (b) permanent and stable (c) transient but stable (d) permanent but unstable.

Last Answer : (a) transient and unstable

Description : If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is (A) Unstable (B) Stable and statically determinate (C) Stable and statically indeterminate (D) None of the above

Last Answer : (A) Unstable

Description : If in a pin-jointed plane frame (m + r) > 2j, then the frame is (A) Stable and statically determinate (B) Stable and statically indeterminate (C) Unstable (D) None of the above

Last Answer : (B) Stable and statically indeterminate

Description : If an element has two electrons in the first shell and seven in the second shell, the element is said to be what? a. Unstable b. Unreactive c. Stable d. Inert

Last Answer : a. Unstable

Description : Which phase of the trajectory model of chronic illness is characterized by reactivation of the illness? a) Unstable The unstable phase is characterized by development of complications or reactivation of the ... comeback phase is the period in the trajectory marked by recovery after an acute period.

Last Answer : a) Unstable The unstable phase is characterized by development of complications or reactivation of the illness.

Description : 09. The rise, in water level, which occurs during the transformation of the unstable shooting flow to the stable streaming flow is called hydraulic jump. A) Yes B) No

Last Answer : A

Description : If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in (A) Neutral equilibrium (B) Stable equilibrium (C) Unstable equilibrium (D) None of these

Last Answer : Answer: Option B

Description : If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium. (A) Neutral (B) Stable (C) Unstable (D) None of these

Last Answer : Answer: Option A

Description : ________ is a quantitative measure of how fair the transients die cut in the system. (a) Absolutely stable (b) Conditionally stable (c) Unstable (d) Relative stability

Last Answer : (d) Relative stability

Description : If root of the characteristics equation has positive real part system is (a) Stable (b)Unstable (C) Marginally stable (d) Linear

Last Answer : (b)Unstable

Description : If the impulse response in absolutely integrate then the system is (a)Absolutely stable (b)Unstable (C) Linear (d) Stable

Last Answer : (a)Absolutely stable

Description : G(s) = (1-s)/s(s+2) then closed loop transfer function is a) Unstable b) Stable c) Marginally stable d) All

Last Answer : Ans: Stable

Description : ‘Fanning’ smokestack plumes are observed when A. There is an inversion above the ground surface. B. There is unstable atmosphere. C. There is neutrally stable atmosphere. D. The stack height is below an inversion layer.

Last Answer : A. There is an inversion above the ground surface

Description : Flash floods are caused when (A) the atmosphere is convectively unstable and there is considerable vertical wind shear (B) the atmosphere is stable (C) the atmosphere is convectively unstable with no vertical windshear (D) winds are catabatic

Last Answer : (A) the atmosphere is convectively unstable and there is considerable vertical wind shear

Description : Radio activity is due to (1) unstable nucleus (2) stable nucleus (3) stable electronic configu-ration (4) stable electronic configu-ration 

Last Answer :  unstable nucleus

Description : Define stability. Sketch the root locations in the s-plane for stable and unstable system.

Last Answer : Stability: The system is said to be stable if it produces bounded output for a bounded input. It is used to define usefulness of the system. The stability implies that the system performance should not ... absence of the input, output may not return to zero it shows certain output without input. 

Description : (A) Allyl free radical is more stable than simple alkyl free radical. (R) The allyl free radical is stabilized by resonance.

Last Answer : (A) Allyl free radical is more stable than simple alkyl free radical. (R) The allyl free radical is ... IF (A) is incorrect but (R) is correct.

Description : Brain Teaser: How well do you understand weighted averages?

Last Answer : I think most people do understand weighted averages, they just don't know that they do. Is there any difference between the problem you wrote and this problem?: If 5 students score 10 points on a ... again, I've never understood exactly what a weighted average is. is the answer 3 liters/students?

Description : Among the following, the least stable resonance structure is :

Last Answer : Among the following, the least stable resonance structure is : A. B. C. D.

Description : How many resonance forms are possible for the Lewis structure of SO3?

Last Answer : ANSWER: 3

Description : If some schools allow GPA's over 100%, or 4.00 then theoretically could admission averages follow suit?

Last Answer : Sure! And at that point everybody would get a scholarship to Harvard and then graduate Cum Laude Then they would get an MD at John’s Hopkins. Then one day they would kill you in the operating room because they were faking it the whole time. How cool is that?!

Description : Brain Teaser (light) - How well do you understand weighted averages?

Last Answer : The final grade is greater than 88 (which would be the grade if they were all waited equally. Since the higher grades are both worth more than the lower grade, the final grade must be greater than that). The ... m willing to bet we can say more than that, but this is as far as I get right now .

Description : Why do we use averages? Are there any limitations to their use? -SST 10th

Last Answer : We use averages for comparisons across different classes. Limiatations of Using Averages : Averages calculate only the mean availability but they hide the disparities in the process. This is the main ... level of both A and B is graduate level, yet there are great disparities between them.

Description : Why do we use averages to compare the development of countries? -SST 10th

Last Answer : Use of averages to compare development: (i) Averages are used for better understanding. (ii) For comparison between countries, total income is not very useful. (iii) Different countries have different ... income is distributed among the people. Some may be very rich but the masses may be poor.

Description : The order of three averages for a given data

Last Answer : Ans. AM > GM > HM

Description : Name Different averages and defines one of them.

Last Answer : Ans: Types of Averages: (1) Arithmetic Mean (2) Geometric Mean (3) Harmonic Mean (4) Median (5) Mode

Description : If a baseball coach calculates batting averages, what scale would be used? a. Interval scale b. Ratio scale c. Nominal scale d. Ordinal scale

Last Answer : b. Ratio scale

Description : Which form of RNA has a structure resembling clover leaf? (a) rRNA (b) hnRNA (c) mRNA (d) tRNA

Last Answer : (c) mRNA

Description : Which form of RNA has a structure resembling clover leaf? (a) rRNA (b) hnRNA (c) mRNA (d) tRNA

Last Answer : tRNA

Description : Which brief statement most accurately describes why alkenes react the way they do? (a) C=C double bonds are weak. (b) A π bond is lost but a stronger σ bond is gained. (c) C=C double bonds are unstable. (d) C=C π bonds are attacked by nucleophiles.

Last Answer : A π bond is lost but a stronger σ bond is gained.

Description : Why Metal Hybrids Are Made ?

Last Answer : Rust is usually easily found in metal objects. Products made of these metals, especially iron, can easily rust when exposed to water and water vapor. This makes the thing unusable. But by mixing ... , it is protected from rust attack. Because alloy products are rust-proof , attractive and durable.

Description : Is it true that reactive oxygen species (ROS) have only one electron and that causes them to be unstable and thus try to grab an electron from other molecules?

Last Answer : answer:You're close, but it's not that they have one electron. Usually they need one electron (you can have species that need more, but one is more typical). The Reactive' bit comes from the ... unpaired electron, by the way). However, 7 is the most common and tends to have the higher reactivity.

Description : which of the following suffixes means “resembling”? -General Knowledge

Last Answer : The suffix that means resembling is '-oid'.

Description : Is resembling an adjective?

Last Answer : Resembling is an VERB "verb (used with object)".......

Description : Some snake embryos have small buds resembling limbs. These buds disappear at later stages of embryo development. These findings suggest that these snakes?

Last Answer : hi oops daddy chulo

Description : Enzyme inhibition caused by a substance resembling substrate molecule is (A) Competitive inhibition (B) Non-competitive inhibition (C) Feedback inhibition (D) Allosteric inhibition

Last Answer : Answer : A

Description : Thermococcus, Methanococcus and Methano- bacterium exemplify (a) bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria (b) bacteria that ... that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled

Last Answer : (c) archaebacteria that contain protein homologous to eukaryotic core histones

Description : White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is (A) Tar (B) Coke oven gas (C) Pitch (D) Pulverised coke

Last Answer : (B) Coke oven gas

Description : Which of the following is a cause of a secondary immunodeficiency? a. X-linked inheritance b. Deficiencies in the complement system c. Viral infection resembling self-cells d. All the above are correct

Last Answer : c. Viral infection resembling self-cells