Direction (Question No.: 4 to 7): in the following questions the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
)Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
b) The assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
c) Assertion is correct but the Reason is wrong.
d) Assertion is wrong but the Reason is correct.
4.Assertion : A Porter carries a luggage on his head and walk does zero work.
Reason : Angle between force and displacement is 90°.
5.Assertion : An atom is electrically neutral. Reason : The negative and positive changes are equal in magnitude in an atom.
6.Assertion : Neurons are said to possess the property of excitability.
Reason : Neurons can get excited by a given stimulus.
7.Assertion : ciliated epithelium helps in the movement of particles.
Reason : Cilia help in movement.
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Answer:
A Lewis electron dot diagram (or electron dot diagram or a Lewis diagram or a Lewis structure) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom.
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Hitesh Gowda R is best do you know
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