Chemistry Practice MCQ Page 17

Multiple Choice questions for Chemistry in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 1377   A chemical reactions tells nothing about its
  1. side reaction
  2. energy
  3. speed
  4. products
Question: 1378   All chemical reactions with similar negative values of ΔH, may proceed
  1. with similar speed
  2. with different speed
  3. instantaneously
  4. with individual characteristics
Question: 1379   The branch of chemistry that deals with reaction rate is called
  1. chemical kinetics
  2. chemical equilibrium
  3. thermodynamics
  4. stochimestry
Question: 1380   Rates of chemical reactions are effect by
  1. one factor
  2. two factors
  3. no factor
  4. several factors
Question: 1381   The yield of a chemical reaction can be improved by
  1. knowing its mechanism
  2. by knowing its mechanism
  3. controlling intermediates
  4. by improving its conditions
Question: 1382   The change in the concentration of reactants or products in unit time is called
  1. rate of product
  2. rate of reaction
  3. velocity of products
  4. rate of reactants
Question: 1383   The rate of decrease of concentration of reactant with time is called
  1. rate of reaction
  2. rate of reactant
  3. rate of product
  4. rate
Question: 1384   The rate of increase of concentration of product with time is called
  1. rate of reaction
  2. rate of reactant
  3. rate of product
  4. rate
Question: 1385   A positive reaction rate means concentration
  1. increases
  2. decrease
  3. remains control
  4. unchanged
Question: 1386   A positive reaction rate is for
  1. equilibrium
  2. reaction
  3. reactants
  4. products
Question: 1387   for a simple chemical reaction, the change in concentration of reactant and product in unit time is
  1. different
  2. never same
  3. equal
  4. always different
Question: 1388   In chemical kinetics all rates are conventionally expressed as
  1. such
  2. positive
  3. negative
  4. zero

Answers to the questions of Chemistry on this page

Following list gives the correct choice for the answer of the Chemistry mcqs.
1377 . C       1378 . D       1379 . A       1380 . D       1381 . D       1382 . B       1383 . A       1384 . A       1385 . A       1386 . B       1387 . C       1388 . B      

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