For the formation of a covalent bond,the difference in the value of electronegativities should be
- AEqual to or less than $1.7$
- BMore than $1.7$
- C$1.7$ or more
- DNone of these
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Which one of the following has the longest covalent bond distance?
The major binding force of diamond,silicon and quartz is
Medium
View SolutionWrite the Lewis structure of the following compounds and show the formal charge on each atom: $HNO_3, NO_2, H_2SO_4$.
Medium
View SolutionThe table shown below gives the bond dissociation energies $E_{diss}$ for single covalent bonds of carbon $C$ atoms with elements $A, B, C$ and $D.$ Which element has the smallest atoms?
$Bond$ $E_{diss} (kJ \ mol^{-1})$ $C-A$ $240$ $C-B$ $328$ $C-C$ $276$ $C-D$ $485$
| $Bond$ | $E_{diss} (kJ \ mol^{-1})$ |
|---|---|
| $C-A$ | $240$ |
| $C-B$ | $328$ |
| $C-C$ | $276$ |
| $C-D$ | $485$ |
MediumAIPMT 1994
View SolutionWhich of the following is not the property of covalent substances?
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