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प्रश्न
Choose the correct answer from the options given below
Condition favorable for formation of a covalent bond is
विकल्प
Equal electro negativities of combining atoms
Difference in electron affinities between combining atoms
Atoms should have low ionistation energy
Low nuclear charge and large internuclear distance
उत्तर
Equal electro negativities of combining atoms
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संबंधित प्रश्न
State one test by which sodium chloride can be distinguished from sugar.
Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity?
Which of the following has a triple bond as well as single bonds?
(a) ethene
(b) methane
(c) ethyne
(d) nitrogen
The electronic configurations of three elements X, Y and Z are as follows:
| X | 2, 4 |
| Y | 2, 7 |
| Z | 2, 1 |
(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
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.
Write answer as directed.
Saturated hydrocarbons are classified into three types. Write these names giving one example each.
Draw the electron dot diagram and structure of nitrogen molecule.
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
Which of the following compounds of carbon does not consist of ions?
