Distinguish between a sigma and a pi bond. - Vidyadip

Question

Distinguish between a sigma and a pi bond.

✓

Answer

Sr. No.	Pi bond	Sigma bond
1	Pi bond is formed by lateral overlapping of orbitals.	Sigma bond is formed by end to end overlapping of orbitals.
2	It is comparatively weak bond.	It is comparatively strong bond.
3	There is only one overlapping orbital is p-p.	The overlapping orbitals are s-s, s-p, p-p.
4	Rotation around pi- bond is restricted.	Rotation is possible around sigma bond.
5	Electron cloud is not symmetrical about the line joining 2 nuclei.	Electron cloud is symmetrical about the line joining 2 nuclei.
6	It is having 2 electron clouds one above the plane of atomic nuclei and one below the plane of atomic nuclei.	It is having 1 electron cloud and that is symmetrical about the inter-nuclear axis.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Chemical Bonding and Molecular Structure→Chemical Bonding and Molecular Structure — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Explain why cation are smaller and anions larger in radii than their parent atoms?

The ionization constant of benzoic acid is $6.46 \times 10^{–5}$ and $K_{sp}$ for silver benzoate is $2.5 \times 10^{–13}$. How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to its solubility in pure water?

Write outer electronic configuration of Cr atom. Why are half filled orbitals more stable?
An electron has a velocity of $50 \mathrm{~ms}^{-1}$, accurate upto $99.99 \%$. Calculate the uncertainty in locating its position. (Mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}, \mathrm{~h}=6.6 \times 10^{-34} \mathrm{~J}$ s)
Write the atomic number of the element in which filling of 3d sub-shell in the atom just starts.

Assign reason for the following:
i. $BaSO _4$ is insoluble although ionic in nature.
ii. $ClF _3$ has only $90^{\circ}$ bond angles.
iii. $SO _2$ is angular but $SO _3$ is planar.
iv. $NH _3$ and $PH _3$ have same hybridization but different bond angle.
v. $CuSO _4 \cdot 5 H _2 O$ loses $4 H _2 O$ on heating but not the fifth molecule.

The ratio of mass percent of C and H of an organic compound $\mathrm{C}_{\mathrm{x}} \mathrm{H}_y \mathrm{O}_z$ is $6: 1$. If one molecule of the above compound $\left(\mathrm{C}_x \mathrm{H}_y \mathrm{O}_z\right)$ contains half much oxygen of required to burn one molecule of compound $\mathrm{C}_x \mathrm{H}_y$ completely to $\mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$. What is empirical formula of $\mathrm{C}_{\mathrm{x}} \mathrm{H}_y \mathrm{O}_z$ ?

The solubility product of lead bromide is $8 \times 10^{-5}$ at 298 K . If the salt is $80 \%$ dissociated in saturated solution, calculate the solubility of the salt (in $g / L$ ).

$0.2325g$ of an organic compound was analysed for nitrogen by Duma's method $0.0317L$ of moist nitrogen was collected at $25^\circ C$ and $755.8mm$ pressure. Calculate the percentage of nitrogen. [Aq. tension of water at $25^\circ C$ is $23.8mm$ Hg.)

Explain why alkyl groups act as electron donors when attached to a $\pi$ system.

First member of each group of representative elements (i.e., s and p-block elements) shows anomalous behaviour. Illustrate with two examples.

Balance the following equations in basic medium by ion-electron method and oxidation number methods and identify the oxidising agent and the reducing agent.$N_2H_4(l) + ClO_3^-(aq) \rightarrow NO(g) + Cl^-(g)$