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प्रश्न
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
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उत्तर
Formation of oxygen molecule (O2): Each oxygen atom has six valence electrons (2, 6). These two atoms achieve a stable electronic configuration (octet) by sharing two pair of electrons. Hence a double bond is formed in between the two atoms.
Formation of covalent bond in oxygen molecule.
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संबंधित प्रश्न
Write structural formula of Methane.
What are covalent compounds?
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is ______.
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
What happens when methane (natural gas) burns in air? Write the chemical equation of the reaction involved.
State the type of bonding in the following molecule.
Water
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.
Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)
State the type of bond formed when the combining atom has small E.N. difference.
