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→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

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

What is Stoichiometry of reaction? What is its use in chemistry.

1. During estimation of nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.5 g of the compound in Kjeldahl's estimation of nitrogen, neutralized 10 mL of $1 M H _2 SO _4$. Find out the percentage of nitrogen in the compound.
2. Explain why $\left( CH _3\right)_3 \stackrel{+}{ C }$ is more stable than $CH _3 \stackrel{+}{ C } H _2$ and $\stackrel{+}{ C } H _3$ is the least stable cation.

Match Column I with Column II.

	Column I		Column II
(i)	Dumas method.	(a)	AgNO₃
(ii)	Kjeldahl’s method.	(b)	Silica gel.
(iii)	Carius method.	(c)	Nitrogen gas.
(iv)	Chromatography	(d)	Free radicals.
(v)	Homolysis	(e)	Ammonium sulphate.

What is the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from an energy level with n = 4 to an energy level with n = 2?

1. What is the general molecular formula of saturated monohydric alcohols?
2. Write structural formulae for compounds named as-
a. 1-Bromoheptane
b. 5-Bromoheptanoic acid

Explain the effect of temperature on spontaneity.

At 1127 K and 1 atm pressure, a gaseous mixture of CO and $CO _2$ in equilibrium with solid carbon has $90.55 \% CO$ by mass
$C ( s )+ CO _2(g) \rightleftharpoons 2 CO ( g )$
Calculate $K_c$ for this reaction at the above temperature.

What is hybridization? Describe sp³, sp² and sp hybridization with examples.

Reaction between N₂ and O_2– takes place as follows:
$\text{2N}_2\text{(g) + O}_2\text{(g)}\rightleftharpoons2\text{N}_2\text{O(g)}$
If a mixture of 0.482mol N₂ and 0.933mol of O₂is placed in a 10L reaction vessel and allowed to form N₂O at a temperature for which $\text{K}_{\text{c}}=2.0\times10^{-37},$ determine the composition of equilibrium mixture.