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प्रश्न
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
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उत्तर
Covalent bond is the bond present in O2 as one oxygen atom shares its electrons with another oxygen atom.
The electron-dot structure is:
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संबंधित प्रश्न
What are covalent compounds?
Explain why carbon forms compounds mainly by covalent bond.
Name the element whose one of the allotropic forms is buckminsterfullerene.
Give one example of a molecule containing a double covalent bond
What is the atomic number of carbon. Write its electronic configuration.
What is buckminsterfullerene?
The number of covalent bonds in pentane (molecular formula C5H12) is:
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
One of the following is not an allotrope of carbon. This is:
(a) diamond
(b) graphite
(c) cumene
(d) buckministerfullerene
Complete the following:
When the nuclei of two different reacting atoms are of ______ mass, then a bond so formed is called ______ covalent bond. (equal, unequal, polar, non-polar)
Draw an electron dot diagram for the formation of the following. State the type of bonding present in them.
Hydroxyl ion
Observe the straight chain hydrocarbons given below and answer the following
questions :
i) Which of the straight chain compounds from A and B is saturated and unsaturated straight chains?
ii) Name these straight chains.
iii) Write their chemical formulae and number of – CH2 - units.
Give examples for the following:
Two gaseous non polar compounds.
Fill in the blank with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).
Explain the bonding in methane molecule using electron dot structure.
What do you understand by dipole (polar) molecule?
Name a greenish-yellow gas which also bleaches.
What is a covalent bond?
State the reasons, why carbon cannot
- Lose four electrons to form C4+ cation and
- Gain four electrons to form C4- anion.
How does carbon overcome this problem to form compounds?
