Chemistry 12 Chapter 4 Exemplar Solutions Chemical Kinetics Part 7

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IV. Matching Type

Question 53:

Match the graph given in Column I with the order of reaction given in Column II. More than one item in Column I may link to the same item of Column II.

Match graph

Column I

Column II

(i)

Concentration

Concentration

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(ii)

Concentration

Concentration

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(a)

Its order

(iii)

Concentration

Concentration

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(b)

Zero Order

(iv)

Concentration

Concentration

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Answer:

(i) β†’ (a) (ii) β†’ (b) (iii) β†’ (b) (iv) β†’ (a)

Question 54:

Match the statements given in Column I and Column II

Match statements

Column I

Column II

(i)

Catalyst alters the rate of reaction

(a)

cannot be fraction or zero

(ii)

Molecularity

(b)

proper orientation is not there always

(iii)

Second half- life of first order reaction

(c)

by lowering the activation energy

(iv)

(d)

is same as the first

(v)

Energetically favourable reactions are sometimes slow

(e)

total probability is one

(vi)

Area under the Maxwell Boltzman curve is constant

(f)

refers to the fraction of molecules with energy equal to or greater than activation energy

Answer:

(i) β†’ (c) (ii) β†’ (a) (iii) β†’ (d) (iv) β†’ (f) (v) β†’ (b) (vi) β†’ (e)

Question 55:

Match the items of Column I and Column II.

Match items of column

Column I

Column II

(i)

Diamond

(a)

short interval of time

(ii)

Instantaneous rate

(b)

ordinarily rate of conversion is imperceptible

(iii)

Average rate

(c)

long duration of time

Answer:

(i) β†’ (b) (ii) β†’ (a) (iii) β†’ (c)

Question 53:

Match the items of Column I and Column II.

Match the items

Column I

Column II

(i)

Mathematical expression for rate of reaction

(a)

rate constant

(ii)

Rate of reaction for zero order reaction is equal to

(b)

rate law

(iii)

Units of rate constant for zero order reaction is same as that of

(c)

order of slowest step

(iv)

Order of a complex reaction is determined by

(d)

rate of a reaction

Answer:

(i) β†’ (b) (ii) β†’ (a) (iii) β†’ (d) (iv) β†’ (d)