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Out of σ and π-bonds, which bond is stro...

Out of σ and π-bonds, which bond is stronger and why?

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Sigma bonds are stronger than `pi-` bond as orbitals overlap along the line of the inert nuclear axis.
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Which one is covalent bond ?

Which of the following statements are correct? 1. A sigma bond is stronger than a pi bond 2. A covalent bond is stronger than a hydrrogen bond 3. HF is more polar than HCl 4. There is one electrovalent bond and three covalent bonds in methylene chloride Select the correct answer using the codes given below

A covalent bond will be formed by the overlapping of atomic orbitals having single electron of opposite spin, according to the overlapping of atomic orbitals the covalent bond may be of two types : (i) Sigma bond (sigma) " " (ii) Pi bond (pi) Sigma bond is stronger bond than the Pi-bond. If atomic orbitals overlap about the nuclear axis then sigma bond is formed but when atomic orbitals overlap sideway then Pi-bond is formed. Compound having maximum bond angle is :

A covalent bond will be formed by the overlapping of atomic orbitals having single electron of opposite spin, according to the overlapping of atomic orbitals the covalent bond may be of two types : (i) Sigma bond (sigma) " " (ii) Pi bond (pi) Sigma bond is stronger bond than the Pi-bond. If atomic orbitals overlap about the nuclear axis then sigma bond is formed but when atomic orbitals overlap sideway then Pi-bond is formed. Compound having maximum bond angle is :

Among covalent bond and hydrogen bond, which bond has a higher bond length?

A covalent bond will be formed by the overlapping of atomic orbitals having single electron of opposite spin, according to the overlapping of atomic orbitals the covalent bond may be of two types : (i) Sigma bond (sigma) " " (ii) Pi bond (pi) Sigma bond is stronger bond than the Pi-bond. If atomic orbitals overlap about the nuclear axis then sigma bond is formed but when atomic orbitals overlap sideway then Pi-bond is formed. The strength of bonds formed by 2s-2s,2p-2p and 2p-2s overlap has the order :

VMC MODULES ENGLISH-CHEMICAL BONDING & MOLECULAR STRUCTURE -PRACTICE EXERCISE
  1. Out of σ and π-bonds, which bond is stronger and why?

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  2. Why are pi-bonds formed in a molecule ? Can d-orbitals also form pi-bo...

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  3. What are the nature of bonds in the SO(3) molecule ?

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  4. Arrange OF(2), Cl(2)O and Br (2)O in decreasing order of their bond an...

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  5. Which has greater bond angle PF(3) or NF(3) ?

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  6. Why does ozone have a bond angle less than 120^(@) ?

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  7. What will be the formal charges on the three oxygen atoms in ozone ?

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  8. Which of the following molecules are homoatomic ? (i) H(2)O, (ii) O(...

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  9. Explain the general properties of solid covalent compounds ?

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  10. Explain why Na tends to form ionic compounds while B forms covalent co...

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  11. Ionic flucorides outnumber ionic iodides. Explain

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  12. MgO is used for lining furnces because:

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  13. What are the sHapes of ClF(3), XeO(2) F(2)and BrF(5) ?

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  14. Explain the bond lengths of all P-Cl bonds in PCl (5) molecule.

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  15. If BF(3) react with F^(-)then how will hybridization of Boron change ?

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  16. The shape of XeF6 molecule is :-

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  17. How many atoms are linear in the compound (CH(3)-CH(2)-C -= C-CH=CH(2)...

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  18. What is the hybridization of nitrogen in the azide ion ?

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  19. Why alkali metals are soft?

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  20. Why do the transition element have higher boiling & melting points?

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