nature of matter and composition - Category wise Question and Answer Practice Test with Solutions
Question : 1
At higher altitudes
a) no change in boiling point
b) boiling point of a liquid increases
c) boiling point of a liquid decreases
d) melting point of solid increases
Answer »Answer: (c)
Question : 2
Who among the following is called 'The father of modern chemistry?
a) Proust
b) Michael Faraday
c) Lavoisier
d) Linus Pauling
Answer »Answer: (c)
Question : 3 [NDA]
In which one of the following situations a chemical reaction does not occur?
a) Sodium is placed in water
b) Common salt is exposed to air
c) Coal is burnt in air
d) Iron is kept in moist air
Answer »Answer: (b)
Question : 4 [CDS]
Which one of the following is used in the preparation of antiseptic solution?
a) Iodine chloride
b) Potassium nitrate
c) Iodine
d) Potassium chloride
Answer »Answer: (c)
Question : 5 [NDA]
Which one among the following statements regarding the properties of mixtures and compounds is not correct?
a) The constituents of a mixture can be separated by physical methods but those of a compound cannot be separated by physical methods
b) A mixture shows the properties of its constituents but the properties of a compound are entirely different from its constituents
c) A mixture may be homogeneous or heterogeneous but a compound is a homogeneous substance
d) Energy is either absorbed or evolved during the preparation of a mixture but not in the preparation of a compound
Answer »Answer: (d)
IMPORTANT general science mcq EXERCISES
general science mcq CATEGORIES
-
» Measurement And SI Units
-
» Measuring Devices And Scales
-
» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
-
» Force Of Gravity, Solids And Fluids
-
» Motion Under Gravity
-
» Physical Properties Of Materials
-
» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
-
» Electric Current And Magnetism
-
» Nuclear Physics And Conductivity
-
» Modern And Space Physics, Sources Of Energy
-
» General Concepts Of Chemistry
-
» Nature Of Matter And Composition
-
» Atomic Structure Molecules And Nuclear Chemistry
-
» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
-
» Metals, Non Metals, Minerals, Ores, Properties, Uses
-
» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
-
» Acids, Bases, Salts And Metals
-
» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
-
» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
-
» Inorganic Chemistry
-
» Organic Chemistry
-
» Environmental Chemistry
-
» Some Important Man Made Materials
-
» Sub Divisions Of Biology
-
» Genetics, Evolution Of Life & Ecological Biodiversity
-
» Taxonomy
-
» Heredity
-
» Biofertilizer
-
» Biological Classification Cell Tissues And Division
-
» Human Anatomy
-
» Blood Transport System
-
» Digestion And Excretion
-
» Photosynthesis
-
» Vitamins, Nutrition, Health, Disease And Treatment
-
» Endocrine Glands, Hormones
-
» Physiology Of Plants, Humans And Animals
-
» Reproduction
-
» Genetic Engineering And Bio Technology
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