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Write the molecular formula of the given compound.
Ethanoic acid
Concept: undefined >> undefined
Match the columns.
| Column A | Column B |
| 1) Direct current | a) Oscillatory |
| 2) Alternating current | b) Non oscillatory |
Concept: undefined >> undefined
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Electropositivity means ______.
Concept: undefined >> undefined
Write the name.
The atom having the smallest atomic radius from zero group.
Concept: undefined >> undefined
Write the name.
Two elements having two orbits.
Concept: undefined >> undefined
Right or wrong sentence:
The value of gravitational acceleration at the centre of earth is zero.
Concept: undefined >> undefined
Right or wrong sentence.
Free fall of an object does not depend on the mass of the object.
Concept: undefined >> undefined
The metallic character of the element decreases moving across a period from left to the right.
Concept: undefined >> undefined
Right or wrong sentence.
Silicon is a metallic element.
Concept: undefined >> undefined
On moving down the group metallic character increases.
Concept: undefined >> undefined
Electronegativity is the metallic property of an element.
Concept: undefined >> undefined
The alternating current is an oscillatory current.
Concept: undefined >> undefined
Right or wrong sentence.
The frequency of the alternating current is 50 Hz.
Concept: undefined >> undefined
Ester is a sweet-smelling compound.
Concept: undefined >> undefined
Write an explanation.
Electropositivity
Concept: undefined >> undefined
Write an explanation.
Electronegativity
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Write scientific reasons.
The value of gravitational acceleration (g) decreases as we go deep inside the earth.
Concept: undefined >> undefined
Write scientific reasons.
When we drop a feather and a stone at the same time from a height the stone reach the earth faster than a feather.
Concept: undefined >> undefined
Write scientific reasons.
The value of gravitational acceleration (g) is taken to be -g when studying the motion of an object thrown upwards in a straight line.
Concept: undefined >> undefined
Write scientific reason.
The metallic character of elements increases while going down the groups.
Concept: undefined >> undefined
