(D) The melting and boiling points of covalent compounds are generally low because the molecules are held together by weak Van der Waals forces of att

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Covalent molecules are held by weak Van der Waals forces of attraction

(D) The melting and boiling points of covalent compounds are generally low because the molecules are held together by weak Van der Waals forces of attraction. These forces require very little energy to overcome,allowing the substance to easily transition from solid to liquid or liquid to gas.

Class 11 Chemistry Chemical Bonding and Molecular Structure Types of bonding and Forces in solid

Medium

Covalent compounds have low melting points because

A
Covalent bond is less exothermic
B
Covalent molecules have definite shape
C
Covalent bond is weaker than ionic bond
D
Covalent molecules are held by weak Van der Waals forces of attraction

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Chemical Bonding and Molecular Structure

Subtopic

Types of bonding and Forces in solid

Which of the following has the highest melting point?

Medium

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Solid $CO_2$ is an example of which type of crystal?

Easy

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$PBr_{5(s)} \rightarrow PBr_{4}^{+} + Br^{-}$
$Br^{-} + Br_2 \rightarrow Br_{3}^{-}$
Which of the following forces is responsible for the interaction of $X^{-}$ and $X_2$ to form a coordinate bond between $X^{-}$ and $X_2$?

Medium

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In which molecule is the van der Waals force likely to be the most important factor in determining the melting point $(m.pt.)$ and boiling point $(b.pt.)$?

Medium

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If the value of ionic radius ratio $\left( \frac{r_c}{r_a} \right)$ is $0.52$ in an ionic compound,the geometrical arrangement of ions in the crystal is:

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Covalent compounds have low melting points because

Similar Questions

Which of the following has the highest melting point?

Solid $CO_2$ is an example of which type of crystal?

$PBr_{5(s)} \rightarrow PBr_{4}^{+} + Br^{-}$ $Br^{-} + Br_2 \rightarrow Br_{3}^{-}$ Which of the following forces is responsible for the interaction of $X^{-}$ and $X_2$ to form a coordinate bond between $X^{-}$ and $X_2$?

In which molecule is the van der Waals force likely to be the most important factor in determining the melting point $(m.pt.)$ and boiling point $(b.pt.)$?

If the value of ionic radius ratio $\left( \frac{r_c}{r_a} \right)$ is $0.52$ in an ionic compound,the geometrical arrangement of ions in the crystal is:

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$PBr_{5(s)} \rightarrow PBr_{4}^{+} + Br^{-}$
$Br^{-} + Br_2 \rightarrow Br_{3}^{-}$
Which of the following forces is responsible for the interaction of $X^{-}$ and $X_2$ to form a coordinate bond between $X^{-}$ and $X_2$?