Chemical Reactions | Chemistry Important Questions For Entry Tests

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CHEMISTRY MCQs QUIZ TESTS LIST


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Chemistry Objective Type MCQs With Answers For Test




Q.1: What will be the pressure of 1 mole of an ideal gas maintained at 300 K and 250cm3 volume ?
  1. 98.5 atm
  2. 96.7 atm
  3. 95.8 atm
  4. 97.1 atm
A
Q.2: If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear ---------- ?
  1. Straight line parallel to x-axis
  2. Straight line parallel to y-axis
  3. Straight line
  4. Curve
C
Q.3: If a buffer solution of higher pH than seven is to be made we use------ ?
  1. Strong acid and strong base
  2. Weak acid and strong base
  3. Weak acid and strong base
  4. Weak acid and its salt with strong base
D
Q.4: The kinetic molecular theory of gases was put forward in 1738 by ------------ ?
  1. Boltzman
  2. Maxell
  3. Clausius
  4. Bernoulli
D
Q.5: The substances that reduces the effectiveness of a catalyst are called ------- ?
  1. Promoters
  2. Poisoning catalysts
  3. Inhibitors
  4. pro-catalysts
B
Q.6: Co-enzymes are------- ?
  1. Non proteineous
  2. Proteineous
  3. sugars
  4. lipids
A
Q.7: The non-ideal behaviour results chiefly from---------- ?
  1. Intermolecular attraction and infinite volume
  2. Elastic collisions and finite volume
  3. Intermolecular attractions and finite volume
  4. Intermolecular attraction only
C
Q.8: For determining the order of reaction we use----------- ?
  1. Refractometric method
  2. Dilatometric method
  3. Optical activity method
  4. Half life method
D
Q.9: Catalyst used to speed up the reaction of ammonia synthesis is---------- ?
  1. V2O5
  2. V2O5 and Pt
  3. Fe
  4. Pieces of Fe crystals are embedded in fused mixture of MgO Al2O3 and SiO2
D
Q.10: Which of the following will not form crystalline structure with opporitely charged ions--------- ?
  1. H+
  2. H-
  3. Mg2+
  4. Ca2+
A
Q.11: Sum of exponents of molar concentration is called--------- ?
  1. Order of reaction
  2. Molecularity
  3. Rate of reaction
  4. Average of reaction
A
Q.12: By the addition of base in waterpH will be--------- ?
  1. more than 7
  2. less than 7
  3. equal to 7
  4. no effect
A
Q.13: In modern periodic table all the leements are arranged in ascending order of---------- ?
  1. Valency
  2. Atomic mass
  3. Atomic number
  4. Valence electrons
C
Q.14: Which of the following will not change the concentration of ammonia at the equilibrium ?
  1. Increase of pressure
  2. Increase of volume
  3. Addition of catalyst
  4. Decrease of temperature
C
Q.15: Which of the following statements is true about plasma-------- ?
  1. It may be the first state of matter
  2. It is not a phase transition
  3. It is a conductor of electricity
  4. All of the above
D
Q.16: Rate expression for ammonia synthesis is----------- ?
  1. Kc=x2/(a-x)(b-x)
  2. Kc=x2/v(a-x)
  3. Kc=4×2/(a-2x)2(b-x)
  4. Kc=4x2v2/(a-x)(b-3x)3
D
Q.17: Non-metals usually form ----------------- oxides ?
  1. Acidic
  2. Amphoteric
  3. Neutral
  4. All of the above
A
Q.18: What is the abundant form of matter on earth ?
  1. Gas
  2. Liquid
  3. Solid
  4. Plasma
C
Q.19: Which of these gases diffuse more quickly than oxygen ?
  1. H2S
  2. NO
  3. Cl2
  4. N2O
B
Q.20: What do we call to sudden expansion of plasma ?
  1. Avogadros law
  2. Grahams law of diffusion
  3. Joule Thompson effect
  4. Daltons law of partial pressure
C
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