Ans.: i) Order and molecularity will be same in single step reaction.
ii) They will be different if reaction is of two or more steps.
Description : Differentiate between order of reaction and molecularity of reaction.
Last Answer : Order of reaction Molecularity 1. It is defined as sum of powers to which concentration terms are raised in rate law ... can be determined, 4. Molecularity of complex reaction can not be determined.
Description : Pick out the wrong statement. (A) Visible radiation provides the necessary activation energy in photochemical reactions (B) The order and molecularity of a complex reaction may not be the same (C) For ... rate constant (k) (D) Molecularity of the reaction is always a whole number greater than zero
Last Answer : (B) The order and molecularity of a complex reaction may not be the same
Description : Information about the order of reaction is obtained from its (a) Reaction rate (b) Molecularity (c) Rate equation (d) Half-life period
Last Answer : Ans:(c)
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 : Molecularity of a reaction (A) Is always equal to the overall order of reaction (B) May not be equal to the order of reaction (C) Can’t have a fractional value (D) Both (B) and (C
Last Answer : (D) Both (B) and (C
Description : Pick out the wrong statement. (A) In a multistep reaction, the slowest step is the rate determining step (B) In general, the rate of a reaction becomes triple for every 10°C rise in temperature (C ... energy (D) Molecularity of a reaction cannot be zero but the order of a reaction can be zero
Last Answer : (B) In general, the rate of a reaction becomes triple for every 10°C rise in temperature
Description : The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the (A) Reaction is elementary with a molecularity of 2 (B) Molecularity of the reaction is 2, ... Reaction may be elementary with molecularity of 2 (D) Reaction is elementary but the molecularity may not be 2
Last Answer : (A) Reaction is elementary with a molecularity of 2
Description : The molecularity and the order of reaction respectively, for the hydrolysis of methyl acetate in presence of acids are (A) 2 & 1 (B) 11 & 2 (C) 2 & 2 (D) 1 & 1
Last Answer : (A) 2 & 1
Description : The number of species participating in the slowest step of the reaction is called molecularity of the reaction.
Last Answer : Define Equilibrium state
Description : Molecularity of an elementary reaction, P + Q → R + S is (A) 1 (B) 2 (C) 3 (D) 4
Last Answer : (D) 4
Description : What is molecularity ?
Last Answer : The number of molecular molecules , atoms or ions that take part in the occurrence of a chemical reaction is called the molecular weight of that sale.
Description : The reactions of high molecularity are rare, because (A) Of very large activation energy of many bodies (B) Of low probability of many body collisions (C) Many body collisions are not favoured energetically (D) Of requirement of very large concentration for such reactions
Last Answer : (B) Of low probability of many body collisions
Description : Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to different breeds- ... Pug, then what could be the color of Saty? (a) White (b) Black (c) Brown (d) Grey
Last Answer : Ans: option (b)
Description : Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to different breeds- ... , then what could be its breed? (a) Labrador (b) Pug (c)Bull dog (d) None of these
Last Answer : (c)Bull dog
Description : Second order consecutive irreversible reaction as shown in the bellow figure, were carried out in a constant volume isothermal batch reactor with different initial feed compositions. Reactor temperature was same in all the cases. In experiments ... constants (k1 /k2 )? (A) 1/4 (B) 1/2 (C) 2 (D) 4
Last Answer : (A) 1/4
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 : Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to different ... in color, then which dog belongs to pug breed? (a)Saty (b)Rex (c)Jany (d)Cannot be determined
Last Answer : (a)Saty
Description : Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to ... Labrador breed. Which dog belongs to Labrador breed? (a)Saty (b) Leo (c)Jany (d)Cannot be determined
Last Answer : (d)Cannot be determined
Description : Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to different breeds- ... the color of Alsatian dog? (a) Brown (b) Grey (c) Either(a)or(b) (d)None of these
Last Answer : (c) Either(a)or(b)
Description : Arrange the following in order of decreasing tendency towards `S_(N^(2))` reaction : `{:(underset("(I)")(CH_(3)CH_(2)CH_(2)CH_(2)Cl)", "underset("(II)
Last Answer : Arrange the following in order of decreasing tendency towards `S_(N^(2))` reaction : `{: ... `IIIgtIVgtIIgtI` C. `IgtIIIgtIIgtIV` D. `IIgtIgtIIIgtIV`
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