Single Choice

Which atom can have more than eight valence electrons when it forms covalent bond?

AH
BN
CF
DCl
Correct Answer

Solution

Due to presence of vacant d-orbital excitation occurs in Cl-atom and it can have more than eight valence electrons when it is forming hypervalent compound like $$HClO_{4}$$.

SIMILAR QUESTIONS

Chemical Bonding

Which of the following compounds contain(s) no covalent bonds? $$KCl,\, PH_3, \, O_2,\, B_2H_6, \,H_2SO_4$$

Chemical Bonding

The group having triangular planar structures is:

Chemical Bonding

Arrange the following in increasing order of covalent character: $$NaCl,\,MgCl_2,\,AlCl_3$$.

Chemical Bonding

Which of the following statements regarding covalent bond is not true?

Chemical Bonding

Fill in the blanks: A covalent bond is formed by ............. of electrons.

Chemical Bonding

Which of the following is easily formed?

Chemical Bonding

Are covalent bonds always non polar?

Chemical Bonding

Potential energy curve for covalent bond formation gives bond length.

Chemical Bonding

The bond between two identical non metallic atoms has a pair of electrons :

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