Chapter 6: Electrical Circuits & Electric Currents - Science Mcqs for Grade 7


Q.  The starting point of manufacturing a product which contains sodium or chlorine is

a. sodium chloride
b. sodium metal
c. chlorine gas
d. chlorine sodiumide


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  A material which loses electrons, becomes
Category: Science Mcqs,   Published by: teswesm
MCQs:  In DC motor, the coil between two carbon rods or other contacts to which electric current is fed, is called
Category: Science Mcqs,   Published by: teswesm
MCQs:  The coil sits between the north and the south pole of the
Category: Science Mcqs,   Published by: teswesm
MCQs:  Most of the electric appliances get energy from
Category: Science Mcqs,   Published by: teswesm
MCQs:  Air and water can conduct electricity only, when they contain
Category: Science Mcqs,   Published by: teswesm
MCQs:  Magnetic effect is present in
Category: Science Mcqs,   Published by: teswesm
MCQs:  The process of decomposition by the use of electricity is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  The rise of temperature due to resistivity, used i
Category: Science Mcqs,   Published by: teswesm
MCQs:  The charges stay where they are produced if the material is
Category: Science Mcqs,   Published by: teswesm
MCQs:  When the sound waves reach our ear, we hear them as
Category: Science Mcqs,   Published by: teswesm
MCQs:  The metal detectors that are used in malls, stations, airports and other commercial areas have
Category: Science Mcqs,   Published by: teswesm
MCQs:  If we add a 13A fuse in a hair drier that requires 2A current, the fuse will
Category: Science Mcqs,   Published by: teswesm
MCQs:  An example of 'semiconductor' is
Category: Science Mcqs,   Published by: teswesm
MCQs:  The use of electrical energy
Category: Science Mcqs,   Published by: teswesm
MCQs:  Passing through two bulbs is
Category: Science Mcqs,   Published by: teswesm
MCQs:  Coating an object such as key or nail with a thin layer of metal is a process called
Category: Science Mcqs,   Published by: teswesm
MCQs:  Water is a poor electrolyte, so an acid is added to increase its conductivity. The acid is
Category: Science Mcqs,   Published by: teswesm
MCQs:  A thin wire in the bulb made up of tungsten is known as
Category: Science Mcqs,   Published by: teswesm
MCQs:  Many main supply system uses
Category: Science Mcqs,   Published by: teswesm
MCQs:  The name of the scientist who discovered relationship between electricity and magnetism was
Category: Science Mcqs,   Published by: teswesm