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 on doubling the concentration of
'Y
(iii) Doubling the concentration of 'Z' does not affect the rate of formation
of 'P'
What is the order of the above chemical reaction?
(A) Zeroth order
(B) First order
(C) Second order
(D) Third order

1 Answer

Answer :

(D) Third order

Related questions

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 : 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 : 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 : 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 : For the chemical reaction X → Y, it is observed that, on doubling the concentration of 'X', the reaction rate quadruples. If the reaction rate is proportional to Cx n , then what is the value of ‘n’? (A) 1/4 (B) 2 (C) 4 (D) 16

Last Answer : (C) 4

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 : 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 : 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 : 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 : 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 : What happens to the period of a pendulum if the mass of the bob is quadrupled? w) it is cut in half x) it stays the same y) it is doubled z) it is quadrupled

Last Answer : ANSWER: X -- IT STAYS THE SAME

Description : The length of both sides of a square parallel plate capacitor are doubled. The capacitance is: w) halved x) the same y) doubled z) quadrupled

Last Answer : ANSWER: Z -- QUADRUPLED

Description : Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is: w) quartered x) halved y) doubled z) quadrupled

Last Answer : ANSWER: Y -- DOUBLED 

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 : 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

Last Answer : (A) S

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 : 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 : What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (A) 0

Description : For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cp n , then what is the value of 'n' for this chemical reaction? (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (B) 1

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 : What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? (A) Zero (B) First (C) Second (D) Third

Last Answer : (B) First

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 : 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 : A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The ... length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Last Answer : a. The length of pendulum should be quadrupled

Description : The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2

Last Answer : (C) 1

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 : 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 : A pair of smith's tongs is an example of the lever of (A) Zeroth order (B) First order (C) Second order (D) Third order

Last Answer : (C) Second order

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 : If the resistance of a circuit is cut in half and the applied voltage is kept constant, the current flow will be _____________. A. doubled B. quadrupled C. unchanged D. cut in half

Last Answer : Answer: A

Description : If the length of a wire is halved and the cross-sectional area is doubled, the resistance will be _____________. A. quartered B. unchanged C. doubled D. quadrupled

Last Answer : Answer: A

Description : When the current flow through a power transmission line is doubled, the power loss _____________. A. is halved B. is doubled C. is quadrupled D. remains the same

Last Answer : Answer: C

Description : The value of the resistor creating thermal noise is doubled. The noise power generated is therefore. A. halved B. quadrupled C. doubled D. unchanged

Last Answer : D. unchanged

Description : If bandwidth is doubled, the signal power is _________. A. not changed B. quadrupled C. tripled D. doubled

Last Answer : A. not changed

Description : _________ law of thermodynamics ascertains the direction of a particular spontaneous process. (A) Zeroth (B) First (C) Second (D) Third

Last Answer : (C) Second

Description : Which law of the thermodynamics provides basis for measuring the thermodynamic property? (A) First law (B) Zeroth law (C) Third law (D) Second law

Last Answer : B) Zeroth law

Description : A refrigerator works on the principle of __________ law of thermodynamics. (A) Zeroth (B) First (C) Second (D) Third

Last Answer : (C) Second

Description : The rate of a chemical reaction can be affected by: w) temperature x) concentration of products y) concentration of reactants z) all of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE

Description : TCDD (2,3,6,7-tetrachlorodibenzo(p)dioxin) is a toxic synthetic chemical. The most consistent adverse effect observed in exposed humans is: w) liver cancer x) birth defects y) disfiguring skin eruption z) an exaggerated sense of well-being

Last Answer : ANSWER: Y -- DISFIGURING SKIN ERUPTION (CHLORACNE) 

Description : In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will (A) Remain the same (B) Be halved (C) Also be doubled (D) Become one fourth

Last Answer : (A) Remain the same

Description : Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be (A) Same (B) Doubled (C) Halved (D) One fourth of its original value

Last Answer : (A) Same

Description : If the clearance of a drug remains constant, doubling the dose rate will increase the steady-state plasma drug concentration by a factor of: A. × 3 B. × 2 C. × 1.5 D. × 1.3

Last Answer : B. × 2

Description : If the clearance of a drug remains constant, doubling the dose rate will increase the steady-state plasma drug concentration by a factor of: A. × 3 B. × 2 C. × 1.5 D. × 1.3

Last Answer : B. × 2

Description : This law of thermodynamics prohibits the construction of a perpetual motion machine “of the second kind”  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Second Law of Thermodynamics

Description : As temperature goes to “0”, the entropy approaches a constant  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Third Law of Thermodynamics

Description : If two systems are in the thermal equilibrium with a third system, then they must be in thermal equilibrium with each other.  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Zeroth Law of Thermodynamics

Description : Which law that states “Entropy of all perfect crystalline solids is zero at absolute zero temperature”?  a. Zeroth law of thermodynamics  b. First law of thermodynamics  c. Second law of thermodynamics  d. Third law of thermodynamics

Last Answer : Third law of thermodynamics