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प्रश्न
Fill in the blanks in the following sentence:
In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.
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उत्तर
In forming an oxygen molecule, two electrons are shared by each atom of oxygen.
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संबंधित प्रश्न
Explain why carbon forms compounds mainly by covalent bond.
Elements forming ionic compounds attain noble gas configuration by either gaining or losing electrons from their outermost shells. Give reason to explain why carbon cannot attain noble gas configuration in this manner to form its compounds.
State the reason to explain why covalent compounds "have low melting and boiling points."
Name the element whose one of the allotropic forms is buckminsterfullerene.
Explain the formation of a chlorine molecule on the basis of electronic theory of valency.
Name one covalent compound containing chlorine.
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
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Methane molecule is non-polar molecule. Explain.
Which element exhibits the property of catenation to maximum extent and why?
Give examples for the following:
Two liquid non polar compounds.
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
The type of bonding in X will be
The particles present in strong electrolytes are
State the type of bond formed when the combining atom has small E.N. difference.
Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain
(i) oxidation
(ii) reduction
(iii)oxidising agent
(iv)reducing agent
Name the anion present in the following compound:
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Write a short note.
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A molecule of ammonia (NH3) has
