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प्रश्न
What is diamond? Of what substance is diamond made?
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उत्तर
Diamond, which is a colourless and transparent substance, is an allotrope of carbon. It is the hardest natural substance known. Diamonds are purely made of carbon and the symbol is C. When we burn diamond in oxygen, only carbon dioxide is evolved showing that diamond is made up of carbon.
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संबंधित प्रश्न
What would be the electron-dot structure of carbon dioxide which has the formula CO2?
How buckminsterfullerene is it related to diamond and graphite?
Draw the electron-dot structure of CO2 compound and state the type of bonding.
Draw the electron-dot structure of HCl compound and state the type of bonding.
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)
Match the pairs.
| Group 'A' | Group 'B' |
| a. C2H6 | 1. Unsaturated hydrocarbon |
| b. C2H2 | 2. Molecular formula of an alcohol |
| c. CH4O | 3. Saturated hydrocarbon |
| d. C3H6 | 4. Triple bond |
Explain the following term with example.
Covalent bond
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.
Explain the structure of Ammonium ion.
Explain why Carbon tetrachloride does not dissolve in water.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
Which of the following is a common characteristic of a covalent compound?
Draw the electron dot structure of covalent compound methane (non polar) and HCL (polar) and give two difference between them.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Name gas with a rotten egg smell.
Write an Explanation.
Alkyne
Write scientific reason.
Carbon has the property of forming many compounds.
The I.U.P.A.C name of CH3CH2CH = CH2 is?
In covalent bond formation, the sharing of ______ electrons takes place in their outermost shell.
Show the covalent bond formation in nitrogen molecule.
