some important man made materials - Category wise Question and Answer Practice Test with Solutions
Question : 1
Which of the statements about glass are correct?
- Glass is a super-cooled liquid having infinite viscosity.
- Violet coloured glass is obtained by adding MnO2 .
- Glass is a man-made silicate.
- Glass is a crystalline substance.
a) 1, 2 and 3
b) 2, 3 and 4
c) 1, 2 and 4
d) 1 and 3
Answer »Answer: (d)
Glass is an amorphous substance.
Question : 3
Which one of the following contains cobalt ?
a) Vitamin A
b) Vitamin B12
c) Riboflavin
d) Vitamin B6
Answer »Answer: (b)
Vitamin B12 (Cyanocobalamines): Cobalamine has by far the most complicated structure of all the vitamins.
It has a cobalt atom in the centre. It also has – CN groups in its structure.
It is a pink-coloured crystalline, water soluble vitamin.
IMPORTANT general science mcq EXERCISES
set 1 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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