In case of a consecutive unimolecular types first order reaction asshown in the bellow figure, the concentration of component __________
increases continuously with time.
(A) S
(B) R
(C) A
(D) None of these

1 Answer

Answer :

(A) S

Related questions

Description : Volume change for unimolecular type first order reaction as shown in the bellow figure, increases __________ with time. (A) Linearly (B) Exponentially (C) Parabolically (D) Logarithmically

Last Answer : (B) Exponentially

Description : With increase in K2 /K1 in case of a unimolecular type elementary reactions as shown in the bellow figure, the fractional yield of 'R' in mixed reactor (for a given conversion of 'A'). (A) Decreases (B) Increases (C) Increases linearly (D) Remain same

Last Answer : (A) Decreases

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

Description : A consecutive reaction, as shown in the bellow figure, is characterised by. (A) Maxima in the concentration of A (B) Maxima in the concentration of B (C) Maxima in the concentration of C (D) High exothermicity

Last Answer : (B) Maxima in the concentration of B

Description : For a __________ order chemical reaction as shown in the bellow figure, the half life period is independent of the initial concentration of the reactant A. (A) Zero (B) First (C) Second (D) Third

Last Answer : (B) First

Description : In a chemical reaction, represented by as shown in the bellow figure, it is observed that the (i) Rate of reaction increases by a factor of 4 on doubling the concentration of the reactant. (ii) Rate of reaction increases ... where, CA = concentration of the reactant) (A) CA (B) CA 2 (C) CA 3 (D) CA

Last Answer : (B) CA 2

Description : In a chemical reaction as shown in the bellow figure, it is observed that the (i) Rate of formation of 'P' is doubled on doubling the concentration of 'X' (ii) Rate of formation of 'P' is quadrupled ... of the above chemical reaction? (A) Zeroth order (B) First order (C) Second order (D) Third order

Last Answer : (D) Third order

Description : What is the order of chemical reaction as shown in the bellow figure, if it is found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B ... the concentrations of both B & C were doubled? (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : (B) 2

Description : For a __________ order chemical reaction as shown in the bellow figure, the fractional conversion of reactant 'A' is proportional to time. (A) Zero (B) First (C) Second (D) Third

Last Answer : (A) Zero

Description : Reaction rate equation for the bellow figure reaction, If S at is present in large excess, what is the order of this reaction? (A) Zero (B) One (C) Two (D) Three

Last Answer : (B) One

Description : Pick out the wrong statemen (A) Autocatalytic reactions are exemplified by microbial fermentation reactions (B) The slowest step has the greatest influence on the overall reaction rate in case of an ... reaction (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Last Answer : (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction

Description : In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is (A) More (B) Less (C) Same (D) Either (A) or (B), depends on other factors

Last Answer : (C) Same

Description : The first order gas phase reaction as shown in the bellow figure is conducted isothermally in batch mode. The rate of change of conversion with time is given by (A) dXA /dt = k1 (1 - XA ) 2 (1 + 2XA ) (B) dXA /dt = k1 (1 - XA ... 5XA ) (C) dXA /dt = k1 (1 - XA ) (D) dXA /dt = k1 (1 - XA )/(1 + XA )

Last Answer : (C) dXA /dt = k1 (1 - XA

Description : What is the Thiele modulus of the solid catalysed first order reaction as shown in the bellow figure, if the pore diffusion offers negligible resistance to reaction? (A) < 5 (B) < 0.5 (C) > 1 (D) 5

Last Answer : (B) < 0.5

Description : The order of the chemical reaction as shown in the bellow figure, whose rate equation is given as -rA = KCA 2 . CB is (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (D) 3

Description : Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction. (A) Zero order (B) Third order (C) Consecutive (D) None of these

Last Answer : (A) Zero order

Description : Inversion of cane sugar is an example of (A) Unimolecular reaction with first order (B) Bimolecular reaction with second order (C) Bimolecular reaction with first order (D) Unimolecular reaction with second order

Last Answer : (C) Bimolecular reaction with first order

Description : The equilibrium constant for the reversible reaction as shown in the bellow figure, is affected by the (A) Temperature of the system (B) Presence or absence of inerts (C) Pressure of the system (D) Kinetics of the reaction

Last Answer : (C) Pressure of the system

Description : Which of the following holds good for an elementary reaction as shown in the bellow figure? (A) The rate of disappearance of 'Y' is equal to the rate of appearance of 'Z' (B) The rate of disappearance of 'Y ... of 'Z' (D) The rate of disappearance of 'X' is equal to the rate of appearance of 'Z

Last Answer : (C) Three times the rate of disappearance of 'X' is equal to the rate of appearance of 'Z

Description : Decomposition rate of a liquid 'X' which decomposes as per the reaction as shown in the bellow figure is given by: (A) K1 . CX (B) (K1 + K2 + K3 ) CX (C) (K1 + K2 ) CX (D) (K2 + K3 ) CX

Last Answer : (C) (K1 + K2 ) CX

Description : For the reaction as shown in the bellow figure, the rate of formation of Z is 0.2 gm mole/litre.hr. What is the rate of disappearance of X in gm mole/litre.hr? (A) 0.4 (B) 0.1 (C) 0.2 (D) None of these

Last Answer : (A) 0.4

Description : Pick out the wrong statement: (A) Chemical reactions with high activation energy are very temperature sensitive (B) A flat velocity profile exists in a plug flow reactor (C) The residence ... D) Half life of a reaction increases with increased initial concentration for reaction orders more than one

Last Answer : (C) The residence time for all the elements of fluid in case of a P.F.R. need not be same

Description : The rate of reaction of a/an __________ reaction is not affected by temperature rise. (A) Autocatalytic (B) Photochemical (C) Consecutive (D) Zero order

Last Answer : (B) Photochemical

Description : Which of the following graph of potential energy represents the unimolecular elimination reaction ?

Last Answer : Which of the following graph of potential energy represents the unimolecular elimination reaction ? A. B. C. D.

Description : When an exothermic reversible reaction is conducted adiabatically, the rate of reaction (A) Continuously increases (B) Continuously decreases (C) Passes through a maximum (D) Passes through a minimum

Last Answer : (C) Passes through a maximum

Description : With increase in initial concentration, the fractional conversion of a first order reaction in a given time (A) Increases (B) Decreases (C) Remain constant (D) Unpredictable

Last Answer : (C) Remain constant

Description : Pick out the wrong statement. (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity(B) For an ideal ... D) Reaction rate does not decrease appreciably as the reaction proceeds in case of an autocatalytic reaction

Last Answer : (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity

Description : A stirred tank reactor compared to tubular-flow reactor provides (A) More uniform operating conditions (B) Permits operation at the optimum temperature for a long reaction time (C) Higher overall selectivity for a first order consecutive reaction (D) All (A), (B) and (C

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

Description : For a zero order chemical reaction, the (A) Half life period is directly proportion to the initial concentration of the reactants (B) Plot of products concentration with time is a straight line through the origin (C) Products concentration increases linearly with time (D) All (A), (B) and (C)

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

Description : For a zero order reaction, the concentration of product increases with the (A) Increase of reaction time (B) Increase in initial concentration (C) Total pressure (D) Decrease in total pressure

Last Answer : (A) Increase of reaction time

Description : The given figure is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)? Bam H1 Sal 1 Pvu II rop ... reduced osmotic pressure (c) HindIII, EcoRI - selectable markers (d) ampR, tetR-antibiotic resistance genes

Last Answer : (d) ampR, tetR–antibiotic resistance genes

Description : The value of 'n' for a chemical reaction A → B, whose reaction rate is → CA n , will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled. (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (D) 3

Description : Pick out the wrong statement. (A) In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time (B) In a semi-batch reactor, ... system (D) In a continuous flow reactor, both the reactants and the products flow out continuously

Last Answer : (C) In a continuous flow reactor, uniform concentration cannot be maintained throughout the vessel even in a well agitated system

Description : A multiple reaction may be classified as a __________ reaction. (A) Consecutive or side (B) Parallel or side (C) Mixed (D) All (A), (B) and (C)

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

Description : . Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction. (A) Elementary (B) Parallel (C) Consecutive (D) None of these

Last Answer : (C) Consecutive

Description : The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order. A) Zero (B) First (C) Second (D) None of these

Last Answer : (C) Second

Description : In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that requiredto reduce it from 10 moles/litre to 5 moles/litre in the ... (A) More than (B) Less than (C) Same as (D) Data insufficient; can't be predicted

Last Answer : (C) Same as

Description : first order chemical reaction, the concentration of the reactant decreases __________ with time. (A) Linearly (B) Exponentially (C) Logarithmically (D) Inversely

Last Answer : (A) Linearly

Description : surface lies at a distance equal to __________ the centre of gravity. (A) IG sin² / bellow (B) IG sin² / (C) IG sin / (D) IG sin /

Last Answer : Answer: Option A

Description : Why physical adsorption is multimolecular whereas chemisorption is unimolecular ?

Last Answer : Chemisorption takes place as a result of reaction between adsorbent and adsorbate. When the surface of the adsorbent is covered with one layer, no further reaction can take place. Physical adsorption is ... any number of layers may be formed one over the other on the surface of the adsorbent.

Description : Half-life period for a first order reaction is __________ the initial concentration of the reactant. (A) Directly proportional to (B) Inversely proportional to (C) Independent of (D) None of these

Last Answer : (C) Independent of

Description : . A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two ... be different (C) Both the conversion as well as concentrations will be different (D) None of these

Last Answer : (B) Conversion in both will be the same but concentrations will be different

Description : Who held the office of the VicePresident of India for two consecutive terms? (1) Dr. S. Radhakrishnan (2) Mr. R. Venkataraman (3) Dr. Shankar Dayal Sharma (4) Mr. V.V. Giri

Last Answer : (1) Dr. S. Radhakrishnan Explanation: Dr. Sarvepalli Radhakrishnan was the Vice President of India from 13 May, 1952 to 12 May, 1962. He was the second President of India from 1962 to 1967.

Description : Who is the only second Vice—President of India to get a second consecutive term after S. Radhakrishnan? (1) K.R. Narayanan (2) B S. Shekhawat (3) M.H. Ansari (4) Dr. Shankar Dayal Sharma

Last Answer : (3) M.H. Ansari Explanation: Mohammad Hamid Ansari is the only second vice-president of India to get a second consecutive term after S. Radhakrishnan. He was elected as Vice President of India on 10 August 2007 and took office on 11 August 2007. He was reelected on 7 August 2012.

Description : The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is A. 1 in 100 upward B. 1 in 500 upward C. 1 in 100 downward D. 1 in 503 upward

Last Answer : ANS: C

Description : With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease; depends on system

Last Answer : (B) Decreases

Description : Sum of the powers of the concentration terms in the rate equation is called the __________ of the reaction. (A) Order (B) Overall order (C) Molecularity (D) None of these

Last Answer : (B) Overall order

Description : The inlet pressure in a constant rate filtration (A) Increases continuously (B) Decreases gradually (C) Remains constant (D) None of these

Last Answer : (A) Increases continuously

Description : The filtrate flow rate in constant pressure filtration (A) Continuously increases (B) Continuously decreases (C) Remain constant throughout (D) May increase or decrease; depends on the pressure

Last Answer : (B) Continuously decreases