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प्रश्न
One of the following contains a double bond as well as single bonds. This is:
(a) CO2
(b) O2
(c) C2H4
(d) C2H2
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उत्तर
(c) C2H4
An ethene molecule (C2H4) contains one double bond between two carbon atoms and four single bonds between carbon and hydrogen atoms.
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संबंधित प्रश्न
State one major difference between covalent and ionic bonds and give one example each of covalent and ionic compounds.
Fill in the blank in the following sentence:
Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
Draw the electron-dot structure of H2O compound and state the type of bonding.
The pencil leads are made of mainly:
(a) lithium
(b) charcoal
(c) lead
(d) graphite
Define a covalent bond.
For each compound mentioned above give the formulae of ions formed in aqueous solution.
State the type of bonding in the following molecule.
Water
Distinguish between ionic and covalent compounds under the following properties:
(i) Strength of forces between constituent elements
(ii) Solubility of compounds in water
(iii) Electrical conduction in substances
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Water
Explain the following term with example.
Homopolymer
Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the options A, B, C and D given below:
X is likely to have a ______.
State the type of bond formed when the combining atom has small E.N. difference.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
Write equations to show how A and B form ions.
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
Name a greenish-yellow gas which also bleaches.
Fill in the blank and rewrite the completed statement:
Covalent compounds are generally soluble in _________ solvents.
Define the functional group and complete the following table.
| S.I. No. | Functional Group | Compound | Formula |
| (1) | ______________ | _______________ |
C2H5OH |
| (2) | _______________ | _______________ | CH3CHO |
Write an Explanation.
Alkene
`"CH"_3 - "CH"_2 - "OH" overset("Alkaline""KMnO"_4 + "Heat")(->) "CH"_3 - "COOH"`
In the above given reaction, alkaline KMnO4 acts as
Show the covalent bond formation in nitrogen molecule.
