GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Valence electrons are shared
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Electrons are gained or lost
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Polar molecules are attracted to one another
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None of the above
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Detailed explanation-1: -A covalent bond is formed by equal sharing of electrons from both the participating atoms. The pair of electrons participating in this type of bonding is called shared pair or bonding pair. The covalent bonds are also termed as molecular bonds.
Detailed explanation-2: -Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.
Detailed explanation-3: -Definition: A covalent bond is formed when the valence electrons from one atom are shared between two or more particular atoms.
Detailed explanation-4: -Covalent bonds involve the sharing of electron pairs between atoms. Electron pairs shared between atoms of equal or very similar electronegativity constitute a nonpolar covalent bond (e.g., H–H or C–H), while electrons shared between atoms of unequal electronegativity constitute a polar covalent bond (e.g., H–O).
Detailed explanation-5: -Answer (B) Double covalent bond. A Double covalent bond is formed when two pairs of electrons are shared between the atoms rather than just one pair.