What is the theoretical yield of a reaction Apex?

Last Answer : The reaction that give good yield of n-Hexane is :- A. `undersetoverset(Na//"dry ether")(rarr)(CH_(3)CH_(2 ... 2)CH_(2)CH_(2)CH_(2)Cl` D. All of them

3, 3-Dimethyl-2-butanol no reaction with HCl yield mainly

Description : 3, 3-Dimethyl-2-butanol no reaction with HCl yield mainly

Last Answer : 3, 3-Dimethyl-2-butanol no reaction with HCl yield mainly A. 2-Chloro-2, 3-dimethyl butane B. ... -3, 3-dimethylbutane D. 1-Chloro-3, 3-dimethylbutane

Why The actual yield of a chemical reaction is generally?

Description : Why The actual yield of a chemical reaction is generally?

Last Answer : Feel Free to Answer

How do you calculate the percentage yield of a chemical reaction?

Description : How do you calculate the percentage yield of a chemical reaction?

Last Answer : Need answer

The energy yield from complete oxidation of products generated by second reaction cycle of β-oxidation of palmitoyl CoA will be (A) 5 ATP (B) 12 ATP (C) 17 ATP (D) 34 ATP

Description : The energy yield from complete oxidation of products generated by second reaction cycle of β-oxidation of palmitoyl CoA will be (A) 5 ATP (B) 12 ATP (C) 17 ATP (D) 34 ATP

Last Answer : Answer : D

Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to (A) Increase the yield of light distillates (B) Suppress coke formation (C) Enhance the octane number of gasoline (D) Reduce gum content in gasoline

Description : Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm2 is maintained during cracking mainly to (A) Increase the yield of ... coke formation (C) Enhance the octane number of gasoline (D) Reduce gum content in gasoline

Last Answer : (B) Suppress coke formation

Pick out the correct statement. (A) Reaction of NH3 with HNO3 to produce (NH4 )2NO3 is endothermic (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate (C) Biuret (an intermediate during urea manufacture) is toxic to seeds and animals (D) Both (B) and (C)

Description : Pick out the correct statement. (A) Reaction of NH3 with HNO3 to produce (NH4 )2NO3 is endothermic (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total ... (an intermediate during urea manufacture) is toxic to seeds and animals (D) Both (B) and (C)

Last Answer : (B) With increase in NH3 /CO2 ratio, urea yield decreases for a given temperature, pressure and total feed rate

Dehydration of ammonium carbamate to yield urea is a/an __________ reaction. (A) Exothermic (B) Endothermic (C) Autocatalytic (D) Catalytic

Description : Dehydration of ammonium carbamate to yield urea is a/an __________ reaction. (A) Exothermic (B) Endothermic (C) Autocatalytic (D) Catalytic

Last Answer : (B) Endothermic

During manufacture of H2SO4 , the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the (A) Temperature is increased (B) Pressure is reduced (C) Temperature is increased and pressure is reduced (D) Temperature is reduced and pressure is increased

Description : During manufacture of H2SO4 , the oxidation of SO2 to SO3 by oxygen is an endothermic reaction. The yield of SO3 will be maximised, if the (A) Temperature is increased (B) Pressure is reduced (C) Temperature is increased and pressure is reduced (D) Temperature is reduced and pressure is increased

Last Answer : (D) Temperature is reduced and pressure is increased

When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. (A) Is greater than (B) Is smaller than (C) Equals (D) Can be either greater or smaller than (depends on the type of reaction)

Description : When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield. (A) Is greater than (B) Is smaller than (C) Equals (D) Can be either greater or smaller than (depends on the type of reaction)

Last Answer : (C) Equals

A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield?(A) Large reactor followed by smaller one(B) Smaller reactor followed by larger one(C) Either of the arrangement (A) or (B) will give the same yield(D) Data insufficient, can't be predicted

Description : A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield? (A) Large reactor followed by smaller one (B) Smaller reactor followed by larger one (C) Either of the arrangement (A) or (B) will give the same yield (D) Data insufficient, can't be predicted

Last Answer : (C) Either of the arrangement (A) or (B) will give the same yield

For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a single CSTR for high yield (B) Tubular reactor is preferred over a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Last Answer : (C) Both (A) and (B)

In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2 , the yield of B increases with the (A) Increase of temperature (B) Decrease of temperature (C) Increase in initial concentration of A (D) Decrease in initial concentration of A

Description : In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2 , the yield of B increases with the (A) Increase of temperature (B) Decrease of temperature (C) Increase in initial concentration of A (D) Decrease in initial concentration of A

Last Answer : (A) Increase of temperature

For series reaction, the relative yield (A) Is always greater for plug-flow reactor than for the single CSTR of the same volume (B) Statement in (A) is wrong (C) Decreases with increasing conversion (D) Both (A) and (C) hold good

Description : For series reaction, the relative yield (A) Is always greater for plug-flow reactor than for the single CSTR of the same volume (B) Statement in (A) is wrong (C) Decreases with increasing conversion (D) Both (A) and (C) hold good

Last Answer : (D) Both (A) and (C) hold good

Which reaction does not yield an ester as one of the products?(a) A carboxylic acid is heated with an alcohol (b) A Grignard reagent is added to a carboxylic acid (c) An acid halide is treated with an alcohol (d) An alkyl halide is heated with the salt of a carboxylic acid

Description : Which reaction does not yield an ester as one of the products? (a) A carboxylic acid is heated with an alcohol (b) A Grignard reagent is added to a carboxylic acid (c) An acid halide is treated with an alcohol (d) An alkyl halide is heated with the salt of a carboxylic acid

Last Answer : A Grignard reagent is added to a carboxylic acid

For the reversible exothermic reaction, N2 + 3H2 ⇌ 2NH3, increase of pressure would (A) Shift the equilibrium towards right (B) Give higher yield of NH3 (C) Both (B) and (C) (D) Neither (A) nor (B)

Description : For the reversible exothermic reaction, N2 + 3H2 ⇌ 2NH3, increase of pressure would (A) Shift the equilibrium towards right (B) Give higher yield of NH3 (C) Both (B) and (C) (D) Neither (A) nor (B)

Last Answer : (C) Both (B) and (C)

Theoretical Groundhog Day (movie) question. Could there be more than one person suffering like Bill Murray did?

Description : Theoretical Groundhog Day (movie) question. Could there be more than one person suffering like Bill Murray did?

Last Answer : These are unknowns. However, there is another story much like it. Check out the series Russian Doll

Is theoretical physics stuck in a rut?

Description : Is theoretical physics stuck in a rut?

Last Answer : answer:I'd say that we are in a period of relative stagnation. Part of it has to do with the fact that most other nations don't have the resources (labs, education, super-geniuses ) and the one ... knowledge is possible, but without the will to learn, we don't have even a chance of obtaining it.

In a theoretical rear-end car accident, would it be better to brake or not?

Description : In a theoretical rear-end car accident, would it be better to brake or not?

Last Answer : answer:Not brake. The energy of the offending car is going to be expended somewhere. You want it pushing you along, rather than crumpling your car. Think of the extremes: 1) You accelerate and the car does not touch you. 2) You lock the brakes and get the full impact.

What is the theoretical bare minimum amount of time required to write a novel?

Description : What is the theoretical bare minimum amount of time required to write a novel?

Last Answer : It depends on how fast you can type. At 140 wpm, you could write a novel in about 5 hours.

Theoretical question involving relativity. Faster than light!

Description : Theoretical question involving relativity. Faster than light!

Last Answer : answer:Wouldn't work. You would need infinite energy to accelerate the disk. Now, say you have a searchlight and you swivel it very fast (in outer space). The boundary of the search beam millions of ... will indeed move faster than the speed of light. But the individual photons in the beam won't.

What does it mean to have a theory in theoretical physics?

Description : What does it mean to have a theory in theoretical physics?

Last Answer : answer:A theory is a (tentative) description of known phenomena which makes further, verifiable predictions of phenomena. These predictions are tested and they too are supportewd by the evidence. Without the ... string hypothesis or string I'm-not-crazy-no-seriously-just-listen-for-a-minute .

Theoretical snakes eating each others tails...

Description : Theoretical snakes eating each others tails...

Last Answer : I’m guessing they eventually wind up giving each other head! Worse ways to die i’m sure.

Could it not be said, that we are, and have been, discovering new dimensions in reality, beyond the theoretical ones we hear so much about?

Description : Could it not be said, that we are, and have been, discovering new dimensions in reality, beyond the theoretical ones we hear so much about?

Last Answer : I get what you mean. That’s a great point. I think they should be considered. I don’t think we consider them as much as the other because we expect there to be other versions of us like in sci-fi stories.

Does knowledge have to be theoretical, i.e have some cogent theme or structure to it?

Description : Does knowledge have to be theoretical, i.e have some cogent theme or structure to it?

Last Answer : That question is too abstract for me. Can you present a concrete example. please?

What is the best university to approach with a reasearch idea involving theoretical solar technology?

Description : What is the best university to approach with a reasearch idea involving theoretical solar technology?

Last Answer : M.I.T.?

A question about time travel (theoretical physics)...

Description : A question about time travel (theoretical physics)...

Last Answer : answer:See, but I have always wondered if we could only travel into the future, based on laws of conservation of energy. Think about it this way, if you travel into the past, are you not then ... going to deposit it at some point in the future. Do we have any theoretical physicists on this site?

the 'theoretical' price of one **** _______ for a second or subsequent dui. -General Knowledge

Description : the 'theoretical' price of one beer _______ for a second or subsequent dui. -General Knowledge

Last Answer : The 'theoretical' price of one beer goes up for a second or subsequent DUI.

What is the theoretical probablity of not rolling a 2?

Description : What is the theoretical probablity of not rolling a 2?

Last Answer : Assuming you are talking about ordinary dice the odds of rolling2 are 1 chance in 36

What is the theoretical value of viscosity of glycrein?

Description : What is the theoretical value of viscosity of glycrein?

Last Answer : Need answer

Is sports massage courses physical or theoretical?

Description : Is sports massage courses physical or theoretical?

Last Answer : The great thing about such sports massage courses is that they involve an element of both physical and theoretical activity to ensure that the student is fit to experience the profession from all angles.

suppose you roll a number cube 30 times write a ratio to describe the theoretical probability of rolling each of the following: (show all your work) 1,4,6,7 an even number an odd number please help I need this thankyou?

Description : suppose you roll a number cube 30 times write a ratio to describe the theoretical probability of rolling each of the following: (show all your work) 1,4,6,7 an even number an odd number please help I need this thankyou?

Last Answer : Please help NOW SOS

What is the theoretical number of chemically different dipeptides that may be assembled from 2 amino acids?

Description : What is the theoretical number of chemically different dipeptides that may be assembled from 2 amino acids?

Last Answer : 4n^2Where n is the no. of amino acids assembled and 2 is the no. amino acids present in the dipeptide.Hence, 2^2=4 dipeptides formed

The relative coefficient of performance is (a) actual COP/theoretical COP (b) theoretical COP/actual COP (c) actual COP x theoretical COP (d) 1-actual COP x theoretical COP

Description : The relative coefficient of performance is (a) actual COP/theoretical COP (b) theoretical COP/actual COP (c) actual COP x theoretical COP (d) 1-actual COP x theoretical COP

Last Answer : Ans: a

The air requirement of a petrol engine during starting compared to the theoretical air requirement for complete combustion is A. more B.unpredictable C. same D. less

Description : The air requirement of a petrol engine during starting compared to the theoretical air requirement for complete combustion is A. more B.unpredictable C. same D. less

Last Answer : ANSWER : D

A two stroke engine has a speed of 750 rpm. A four stroke engine having an identical cylinder size runs at 1500 rpm. The theoretical output of the two stroke engine will (a) Be twice that of the four stroke engine (b) Be half that of the four stroke engine (c) Be the same as that of the four stoke (d) Depend upon whether it is a CI or SI engine

Description : A two stroke engine has a speed of 750 rpm. A four stroke engine having an identical cylinder size runs at 1500 rpm. The theoretical output of the two stroke engine will (a) Be twice that of the four stroke ... ) Be the same as that of the four stoke (d) Depend upon whether it is a CI or SI engine

Last Answer : Ans :c

The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is a. more b. less c. same d. may be more or less depending on engine capacity

Description : The air requirement of a petrol engine during starting compared to theoretical air required for complete combustion is a. more b. less c. same d. may be more or less depending on engine capacity

Last Answer : ANSWER b. less

A theoretical reference antenna that provides a comparison for antenna measurements. A. Marconi antenna B. Isotropic radiator C. Yagi-Uda array D. Whip antenna

Description : A theoretical reference antenna that provides a comparison for antenna measurements. A. Marconi antenna B. Isotropic radiator C. Yagi-Uda array D. Whip antenna

Last Answer : B. Isotropic radiator

What is the theoretical gain of a Hertzian dipole? A. 1.76 dB B. 2.15 dB C. 3 dB D. 0 dB

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

Which of the following is standardized as part of GSM phase 2+ that can offer theoretical data speeds of upto 115 kbit/s? A. EDGE B. GPRS C. WAP D. Bluetooth

Description : Which of the following is standardized as part of GSM phase 2+ that can offer theoretical data speeds of upto 115 kbit/s? A. EDGE B. GPRS C. WAP D. Bluetooth

Last Answer : B. GPRS

What is the maximum theoretical data rate of the above problem if one transponder is used for binary transmission? A. 36 Mbps B. 72 Mbps C.18 Mbps D. 144 Mbps

Description : What is the maximum theoretical data rate of the above problem if one transponder is used for binary transmission? A. 36 Mbps B. 72 Mbps C.18 Mbps D. 144 Mbps

Last Answer : B. 72 Mbps

Theoretical gain of a hertzian dipole A. 0 dB B. 1.76 dB C. 3 dB D. 2.15 dB

Description : Theoretical gain of a hertzian dipole A. 0 dB B. 1.76 dB C. 3 dB D. 2.15 dB

Last Answer : B. 1.76 dB

Highest theoretical frequency that can be processed at a sampling rate without aliasing. A. Folding frequency B. Resonant frequency C. Natural frequency D. Critical frequency

Description : Highest theoretical frequency that can be processed at a sampling rate without aliasing. A. Folding frequency B. Resonant frequency C. Natural frequency D. Critical frequency

Last Answer : A. Folding frequency

What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Description : What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Last Answer : C. Lies in the different definitions of the modulation index

Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m). (A) 3.6 V.W.Dr.ρ (B) 3.6 V.W. ρ (C) 3.6 W.Dr.ρ (D) 3.6 V.W.Dr/ρ

Description : Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls ... V.W.Dr.ρ (B) 3.6 V.W. ρ (C) 3.6 W.Dr.ρ (D) 3.6 V.W.Dr/ρ

Last Answer : (A) 3.6 V.W.Dr.ρ

The minimum number of theoretical plates is required for achieving a given separation in distillation column with (A) No reflux (B) Total reflux (C) Zero reflux ratio (D) Minimum reflux ratio

Description : The minimum number of theoretical plates is required for achieving a given separation in distillation column with (A) No reflux (B) Total reflux (C) Zero reflux ratio (D) Minimum reflux ratio

Last Answer : (B) Total reflux

Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for (A) Constant molal overflow (B) Total reflux (C) Constant relative volatility (D) All (A), (B) and (C)

Description : Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for (A) Constant molal overflow (B) Total reflux (C) Constant relative volatility (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

What is the theoretical yield of a reaction Apex?

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