Chemistry Practice MCQ Page 18

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: 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
Question: 1389   A falling plot of concentration various time indicates the rate of
  1. reaction progress
  2. product formation
  3. reactant disappearance
  4. equilibrium
Question: 1390   A rising plot of concentration versus time indicates the rate of
  1. reaction progress
  2. product formation
  3. reactant disappearance
  4. equilibrium
Question: 1391   When the plot of concentration versus time becomes parallel to x-axis, it indicates
  1. reaction progress
  2. product formation
  3. reactant disappearance
  4. equilibrium
Question: 1392   In physical methods, the rate of the reaction can be determined by using
  1. spectro photometer
  2. titration
  3. concentration
  4. weight
Question: 1393   In physical methods for the determination of rate of a reaction, the samples are usually
  1. not removed
  2. checked individually
  3. removed
  4. no checked regularly
Question: 1394   In the chemical method for the determination of reaction rate, the concentration of reactant or product is regularly
  1. ignored
  2. measured
  3. made constant
  4. added
Question: 1395   The most common method for measuring the change in the concentration of reactant or product is by
  1. density method
  2. conductivity
  3. volumetric method
  4. spectrophotometric method
Question: 1398   At constant temperature, the volume of a given mass of a gas and pressure are related
  1. normally
  2. inversely
  3. directly
  4. equally
Question: 1399   The product of pressure and volume of a given mass of a gas at constant temperature is a
  1. whole number
  2. constant
  3. fraction
  4. multiple
Question: 1400   Colligative properties mainly depend upon atoms
  1. number
  2. structure
  3. individual
  4. collevitve