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7 months ago

Class 12th Chemistry

Which of the following compounds will show retention in configuration on nucleophile substitution by OH? ion?

 
0 Follower 6 Views

R
Raj Pandey

Contributor-Level 9

Reaction path is SN2 because OH? is strong nucleophile, but hydroxyl ion will not attack on chiral centres and so there is retension of configuration.

New answer posted

7 months ago

Class 12th Chemistry

A spherical balloon of radius 3 cm containing helium gas has a pressure of 48 * 10?³ bar. At the same temperature, the pressure, of a spherical balloon of radius 12 cm containing the same amount of gas will be * 10? bar
0 Follower 5 Views

V
Vishal Baghel

Contributor-Level 10

P? V? =P? V? 48*10? ³*3³ = P? *12³. P? =750*10?

New answer posted

7 months ago

Class 12th Chemistry

In an estimation of bromine by Carius method, 1.6 g of an organic compound gave 1.88 g of AgBr. The mass percentage of bromine in the compound is [numerical value] (Atomic mass, Ag=108, Br=80 g mol?¹)
0 Follower 3 Views

V
Vishal Baghel

Contributor-Level 10

AgBr=1.88g. Br=0.8g. %Br= (0.8/1.6)*100=50%.

New question posted

7 months ago

Class 12th Chemistry

The IUPAC name for the following compound is:

 
0 Follower 17 Views

New answer posted

7 months ago

Class 12th Chemistry

The major aromatic product C in the following reaction sequence will be :

 
0 Follower 33 Views

R
Raj Pandey

Contributor-Level 9

Kindly consider the following Image

 

New answer posted

7 months ago

Class 12th Chemistry

For the reaction Fe₂N(s) + (3/2)H₂(g) ⇌ 2Fe(s) + NH₃(g)
0 Follower 19 Views

V
Vishal Baghel

Contributor-Level 10

Δng=-1/2. Kp=Kc (RT)? ¹/². Kc=Kp (RT)¹/².

New answer posted

7 months ago

Class 12th Chemistry

The increasing order of the following compounds towards HCN addition is:

 
0 Follower 6 Views

R
Raj Pandey

Contributor-Level 9

-I, -M effect of NO? increase reactivity towards nucleophilic addition reaction with HCN.

New answer posted

7 months ago

Class 12th Chemistry

Which of the following compounds shows geometrical isomerism?
0 Follower 4 Views

V
Vishal Baghel

Contributor-Level 10

It will show geometrical isomerism

New answer posted

7 months ago

Class 12th Chemistry

If AB? molecule is a polar molecule, a possible geometry of AB? is
0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

For AB? compound possible geometry are

S. No.

Bond pair

Lone pair

Total

Hybridisation

Geometry

Polarity

1

4

0

4

Tetrahedral

non polar

2

4

1

5

Sea-saw

Polar

3

4

2

6

Square Planar

non polar

 

Square pyramidal can be polar due to lone pair moment as the bond pair moments will get cancelled out.

New answer posted

7 months ago

Class 12th Chemistry

The present of soluble fluoride ion upto 1ppm concentration in drinking water, is:
0 Follower 1 View

V
Vishal Baghel

Contributor-Level 10

Fact based   

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