atomic structure molecules and nuclear chemistry - Category wise Question and Answer Practice Test with Solutions
Question : 6
While performing cathode ray experiments, it was observed that there was no passage of electric current under normal conditions. Which of the following can account for this observation ?
a) Carbon dioxide is present in air
b) Air is a poor conductor of electricity under normal conditions
c) Dust particles are present in air
d) None of these
Answer »Answer: (b)
Question : 7
Which one of the following laws explains the formation of carbon monoxide and carbon dioxide from carbon and oxygen?
a) Law of multiple proportions
b) Law of reciprocal proportions
c) Law of conservation of mass
d) Law of difinite proportions
Answer »Answer: (a)
Law of multiple proportions explains the formation of CO and CO2 , in these same weight of carbon that combines with weights of oxygen are in simple rate of 1 : 2.
Question : 8 [RAS/RTS (Pre) 1992]
Which of the following statement about molecular structure is correct?
a) Electron and proton are inside the nucleus and neutron revolve around the nucleus
b) Proton and neutron are inside the nucleus and electrons revolve around the nucleus
c) Neutron and electron are found inside the nucleus and protons revolves around the nucleus
d) Proton, neutron and electron all are inside the nucleus
Answer »Answer: (b)
IMPORTANT general science mcq EXERCISES
set 3 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
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» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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