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प्रश्न
Give reason for the following:
Covalent compounds have a low melting and boiling point.
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उत्तर
Covalent compounds are held together by modest intramolecular forces. As a result, breaking the bonds between two or more molecules requires only a minimal amount of energy.
Therefore, these compounds have low melting and boiling points.
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संबंधित प्रश्न
By drawing an electron dot diagram show the formation of Ammonium ion [Atomic No.: N = 7 and H = 1]
Choose the most appropriate answer of the following:
Bonding in this molecule can be understood to involve coordinate bonding
(A) Carbon tetrachloride
(B) Hydrogen
(C) Hydrogen chloride
(D) Ammonium chloride
Identify the anion present in the following compounds:
A salt M on treatment with concentrated sulphuric acid produces a gas which fumes in moist air and gives dense fumes with ammonia
Choose the correct answer from the options given below:
A compound X consists of only molecules. Hence, X will have
A. A crystalline hard structure
B. A low melting point and low boiling point
C. An ionic bond
D. A strong force of attraction between its molecules
Give a reason for Inert gases do not form ions.
Give two example in the following case:
Co-ordinate bond compounds
Give the conditions for coordinate bond formation.
Fill in the blanks
A coordinate bond is represented by an arrow pointing from ________ to__________ atom.
What is the term defined below?
A bond formed by a shared pair of electrons with both electrons coming from the same atom.
What are the term defined below?
A bond formed by a shared pair of electrons with both electrons coming from the same atom.
