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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
A covalent bond is likely to be formed between two elements which
  • ✓
    Have similar electronegativities
  • B
    Have low ionization energies
  • C
    Have low melting points
  • D
    Form ions with a small charge
✓

Answer

Correct option: A.
Have similar electronegativities
a
A covalent bond is possible between Similar and Dissimilar atoms.

Two atoms with same electronegativity or similar electronegativity can form a covalent bond.

For example, $2 H$ atoms combine to form a covalent bond in hydrogen molecule.

Also, one $C$ atom combines with $4 H$ atoms to form four $C - H$ covalent bonds in methane.

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