Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Samiksha Rathore 8 years, 3 months ago
- 1 answers
Posted by Ali Raza 8 years, 3 months ago
- 1 answers
Bhumika Varshney 8 years, 3 months ago
Posted by Aayu Badole 8 years, 3 months ago
- 1 answers
Aman Yadav 8 years, 3 months ago
Posted by Anuradha Gupta 8 years, 3 months ago
- 1 answers
Posted by Vishal Tutlani 8 years, 3 months ago
- 1 answers
Saksham Sawarna 8 years, 3 months ago
Posted by Sahil Jaat 8 years, 3 months ago
- 0 answers
Posted by Kanak Sharma 8 years, 3 months ago
- 1 answers
Posted by Anupama Goel 8 years, 3 months ago
- 0 answers
Posted by Gaurav Gaurav 8 years, 3 months ago
- 0 answers
Posted by Parshav Goel 8 years, 3 months ago
- 0 answers
Posted by Kajal Gour 8 years, 3 months ago
- 1 answers
Dr. Kamlapati Bhatt 8 years, 3 months ago
There is a structural difference between phenol and benzyl alcohol .
| Phenol | Benzyl alcohol |
| The -OH ( hydroxyl group is directly bonded to H atom of the benzene ring. | The - OH group is bonded to to alkyl group (-CH3 ) , atready linked with the benzene ring. |
| - | Thus ,benzene nuleus or ring is bonded to - CH2 OH group . |
PHENOL ( C6 H5 - OH )
C6 H5 - CH2 OH
Posted by Bio Tech 8 years, 3 months ago
- 0 answers
Posted by Pawan Kumar Singh 8 years, 3 months ago
- 2 answers
Amar Kumar 8 years, 3 months ago
At 673 K, the value of Gibbs free energy (CO,CO2) is less than that of Gibbs free energy of (C,CO) . Therefore, CO can be reduced more easily to CO2 than C to CO. Hence, CO is a better reducing agent than C at 673 K.
Posted by Abhishek Sinver 8 years, 3 months ago
- 1 answers
Amar Kumar 8 years, 3 months ago
“Anisotropic” refers to the properties of a material that is dependent on the direction. Another condition that can fit the anisotropic definition is the presence of different properties in different directions. A different chemical bonding in all directions is also a condition for anisotropy
Posted by Karam Bir 8 years, 3 months ago
- 0 answers
Posted by Gargi Raghav 8 years, 3 months ago
- 1 answers
Naveen Sharma 8 years, 3 months ago
A blast furnace is usually built with a steel case and bricks made of magnesia inside the case.
Posted by Kamlesh Kumar 8 years, 3 months ago
- 3 answers
Naveen Sharma 8 years, 3 months ago
The basicity of an acid is the number of hydrogen ions, which can be produced by one molecule of the acid. basicity of COOH is 1. it is monobasic.
Posted by Bhawna Batra 8 years, 3 months ago
- 2 answers
Shiny Thomas 7 years, 7 months ago
Posted by Dipanshu Garg 8 years, 3 months ago
- 1 answers
Naveen Sharma 8 years, 3 months ago
The alcohols are less acidic then phenols because it is very tough to remove the H ion from alcohol.Phenol can lose ion easily because phenoxide ion formed is stabilised to some extent,This is as the negative charge on the oxygen atom is localised around the ring i.e having a cyclic structure in phenol helps it stay stable even after hydrogen is removed.
De-localized charge means negative chharge is distributed almost equally through the compounds.The more stable ion is,the more likely it is to form.In this case phenol,the alcohol is almost similar to being non charged even after the hydrogen ion is removed and thus can have some acidic effect.
Posted by Aayush Jangid 8 years, 3 months ago
- 1 answers
Naveen Sharma 8 years, 3 months ago
The oxidation state of P in PCl4+1 is +5 while the oxidation state of P in PCl4-1 is +3. As we move down the group, the stability of +5 oxidation state decreases and the stability of +3 oxidation state increases. Chlorine belongs to third period. Hence, PCl4+1 compound is more likely to exist.
Posted by Bheem Goyal 8 years, 3 months ago
- 2 answers
Naveen Sharma 8 years, 3 months ago
Mischmetal is an alloy consisting of 95% of a lanthanoid metal, 5% iron and traces of sulphur, carbon, calcium and aluminium. It is used in the production of alloy steels for plates and pipes and Mg-based alloy to produce bullets, shell and lighter flint.
Bheem Goyal 8 years, 3 months ago
Posted by Mohit Panchal 8 years, 3 months ago
- 1 answers
Tejaswani Bhargav 5 years, 9 months ago
Posted by Rajkumar Pal 8 years, 3 months ago
- 1 answers
Posted by Hemangj Padmani 8 years, 3 months ago
- 1 answers
Smita Mittal 8 years, 3 months ago
Electrophoretic effect. This is another factor which slows the motion of ions within a solution. It is the tendency of the applied potential to move the ionic atmosphere itself. This drags the solvent molecules along because of the attractive forces between ions and solvent molecules.
Posted by Palak Sikarwar 8 years, 3 months ago
- 0 answers
Posted by Rajkumar Pal 8 years, 3 months ago
- 0 answers
Posted by Sudarshan Gehlot 8 years, 3 months ago
- 0 answers
Posted by Akash Gangwar 8 years, 3 months ago
- 0 answers
Posted by Abhishek Kumar 8 years, 3 months ago
- 2 answers
Suraj Verma 8 years, 3 months ago
Payal Singh 8 years, 3 months ago
Activation energy is the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction.
The Arrhenius equation as it's used in chemistry is often stated according to the formula:
{tex}k = Ae^{-E_a\over RT}{/tex}
where:
- k is the rate constant
- A is an exponential factor that is a constant for a given chemical reaction, relating the frequency of collisions of particles
- the activation energy of the reaction (usually given in Joules per mole or J/mol)
- R is the universal gas constant
- T is the absolute temperature in Kelvin
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
Sakshi Yadav 8 years, 3 months ago
2Thank You