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Covalent Bond

Pure covalent...

Question

Pure covalent bond is present in :

A

H - C l

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B

C l - C l

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C

C - C l

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D

N a - C l

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Solution

The correct option is D $C l - C l$
Bond will be pure covalent if the electronegativity and size of both the atoms are same. It is possible if atoms are same. In the given bonds, the bond between identical atoms is Cl-Cl.

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Similar questions

Q. What type of crystal defect is indicated in the diagram below?

$N a^{+}$	$C l^{-}$	$N a^{+}$	$C l^{-}$	$N a^{+}$	$C l^{-}$
$C l^{-}$		$C l^{-}$	$N a^{+}$		$N a^{+}$
$N a^{+}$	$C l^{-}$		$C l^{-}$	$N a^{+}$	$C l^{-}$
$C l^{-}$	$N a^{+}$	$C l^{-}$	$N a^{+}$		$N a^{+}$

Q. What type of crystal defects is indicated in the diagram given below?

\begin{matrix} N a^{+} & C l^{-} & N a^{+} & C l^{-} & N a^{+} & C l^{-} C l^{-} & □ & C l^{-} & N a^{+} & □ & N a^{+} N a^{+} & C l^{-} & □ & N a^{+} & C l^{-} & C l^{-} C l^{-} & N a^{+} & C l^{-} & N a^{+} & □ & N a^{+} \end{matrix}

L i C l, B e {C l}_{2}, B {C l}_{3}

C {C l}_{4}

the covalent bond character follows the order:

N a

C l

does not form covalent bond because:

N a + C l \to N a^{+} + C l^{-} \to N a^{+} C l^{-}

(2,8,1) (2,8,7) (2,8) (2,8,8)
The above equation represents the formation of sodium chloride. Observe the equation and answer the following:
a) How many electrons are transferred from

N a

C l

?
b) Name the force acting between

N a^{+}

C l^{-}

.
c) Name the nearest noble gas to

C l^{-}

.
d) Name the bond between

N a^{+}

C l^{-}

.
e) How many electrons are present in

N a^{+}

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