Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Manjusmita Rout 6 years ago
- 0 answers
Posted by Vikas Rathod 6 years ago
- 0 answers
Posted by Vikas Gill 6 years ago
- 1 answers
Posted by Madhu Choudhary 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Aldol condensation occurs in aldehydes having α-hydrogen with a dilute base to give β-hydroxy aldehydes called aldols. This reaction is most commonly known as aldol condensation. If the condensation reaction occurs between two different carbonyl compounds it is called crossed aldol condensation.
Aldol Condensation can be defined as an organic reaction in which enolate ion reacts with a carbonyl compound to form β-hydroxy ketone or β-hydroxy aldehyde, followed by dehydration to give a conjugated enone. Aldol Condensation plays a vital role in organic synthesis, creating a path to form carbon-carbon bonds.
The general reaction of aldol condensation is
Posted by Jagtar Singh 6 years ago
- 1 answers
Yogita Ingle 6 years ago
The Allotropes are different forms of an element having different physical properties but the same chemical properties.For example ,the Allotropes of Carbon-that is Graphite and Diamond are allotropes of Carbon.
Posted by Debyanshu Banerjee 6 years ago
- 2 answers
Yogita Ingle 6 years ago
Adsorption is surface phenomenon therefore adsorption is directly proportional to the surface area.
Finely divided substance has greater surface area. Greater is the surface area of the adsorbent, greater would be its absorbent power. That is why a finely divided surface is more effective as an absorbent.
Anshika Rathi 6 years ago
Posted by Diksha Mittal 6 years ago
- 1 answers
Posted by Harsh Rai 6 years ago
- 2 answers
Yogita Ingle 6 years ago
Gauze catalyst is the large sheets of metal gauze prepared by using the metal Platinum and Rhodium. It is used in manufacturing of Nitric acid from Ammonia at industrial scale.This is an example of heterogeneous catalysis.The process involves oxidation of the ammonia from the Haber Process by oxygen in the air in the presence of a platinum-rhodium gauze sheet. Large sheets of metal gauze are used in order to reduce expense and to maximize the surface area of the catalyst. The sheets of gauze are held at a temperature of about 900°C. The reaction is very exothermic, and once it starts the temperature is maintained by the heat evolved.
Posted by Deepika Brindha 6 years ago
- 2 answers
Posted by Swati Chaurasia 6 years ago
- 3 answers
Yogita Ingle 6 years ago
The molecular orbital of O2 molecule places all the electrons ( 8 and 8, In the figure the lowest 1S bonding and 1S antibonding accommodating 4 electrons are omitted ) , the arrangement of rest 12 electrons are shown) ) filled in such a way that from energy point of view all the electrons to be filled with lower energy orbital first . In this way we get fill up of electrons like : You can see that highest two electrons are in degenerate ( same energy ) two orbitals each have same energy and not paired so oxygen is paramagnetic with two unparied electrons.
Aman Kumar 6 years ago
Posted by Vikram Singh 6 years ago
- 1 answers
Posted by Pran Singh 6 years ago
- 2 answers
Posted by Neymar Jr. 6 years ago
- 1 answers
Posted by Dinesh Kumar 6 years ago
- 4 answers
Badshah Of All Souls 6 years ago
Nishu Goyal 6 years ago
Posted by Kushagra Gulati 6 years ago
- 3 answers
Ansh Khasber 6 years ago
Nidhi Jaikishan 6 years ago
Posted by Anjali Yadav 6 years ago
- 2 answers
Harsh Mishra 6 years ago
Is there any other catalyst too..... I mean I haven't heard a reaction of Alkyne with just sodium But this may be useful too You.....
When Sodium is dissolved in liquid ammonia (boiling point –33 °C), it produces a beautiful deep blue color. When alkynes are present, they will be reduced to the trans (i.e. E) alkene. This makes Na/NH3 a useful companion to the Lindlar reduction of alkynes, which gives cis-alkenes......
Copied from somewhere :)
Posted by Vashu Rajak 6 years ago
- 1 answers
Posted by Amit Kumar 6 years ago
- 0 answers
Posted by Ananya Chakraborty 6 years ago
- 2 answers
Posted by Prachi Thakur 6 years ago
- 0 answers
Posted by Md. Saquib Alam 6 years ago
- 1 answers
Posted by Suhani Bhardwaj 6 years ago
- 0 answers
Posted by Sreeumadevi Konala 6 years ago
- 1 answers
Posted by Sandeep Kumar Rathor 6 years ago
- 1 answers
Suhani Bhardwaj 6 years ago
Posted by Pathak Parth 6 years ago
- 0 answers
Posted by Sivanshu Saini 6 years ago
- 2 answers
Pragati Gola 6 years ago
Soumya Ranjan Panda 6 years ago
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
