Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Shreya Mandal 3 years, 10 months ago
- 1 answers
Posted by Badboy Gaming 3 years, 10 months ago
- 1 answers
Posted by Mohd Arshad 3 years, 10 months ago
- 2 answers
Yogita Ingle 3 years, 10 months ago
The ozone formation is actually endothermic, and oxygen is known to be less stable when combined with Heat as in speaking from the basis of thermodynamically. This is because oxygen decomposes in Ozone and then the Heat is liberated. Adding to this, Ozone is known to consist of 3 molecules of oxygen and is in an unstable state and is known to give out one molecule of oxygen for restoring a diatomic state. So basically immense quantities of Heat are released from this reaction, and the same is released to the atmosphere.
Posted by Preeti Yadav 3 years, 10 months ago
- 2 answers
Supriya Singh 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Methods of Preparation of haloalkanes
- By halogenations of alkanes in presence of light, catalyst or heat:
- By halogenations of alkenes with HX :
Posted by Strange Men 3 years, 10 months ago
- 2 answers
Avinash Mathuri 3 years, 10 months ago
Posted by Anuradha Patwari 3 years, 10 months ago
- 1 answers
Posted by Shraddha ✨✰✰ 3 years, 10 months ago
- 4 answers
Tarun Giri 3 years, 10 months ago
Posted by Praveen Singh Deora 3 years, 10 months ago
- 2 answers
Posted by Insha Khalid 3 years, 10 months ago
- 0 answers
Posted by Annol B 3 years, 10 months ago
- 3 answers
Posted by Sudeep H R 3 years, 10 months ago
- 2 answers
Posted by Gagan Jeet Yadav 3 years, 10 months ago
- 2 answers
Shivanshu Dhangar 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Intermolecular forces, often abbreviated to IMF, are the attractive and repulsive forces that arise between the molecules of a substance. These forces mediate the interactions between individual molecules of a substance.
Posted by Preeti Yadav 3 years, 10 months ago
- 2 answers
Preeti Yadav 3 years, 10 months ago
Muddabbir Hussain 3 years, 10 months ago
Posted by Divyanshu Sahoo 3 years, 10 months ago
- 1 answers
Gaurav Seth 3 years, 10 months ago
When salt is spread over snow covered roads, snow starts melting from the surface because depression of freezing point of water takes place due to addition of salt. It helps in clearing of roads. Hence, the phenomena is depression in freezing point which helps in clearing the snow covered roads in hilly areas.
Posted by Jiya Chhabra 3 years, 10 months ago
- 1 answers
Goldy Sharma 3 years, 10 months ago
Posted by Badboy Gaming 3 years, 10 months ago
- 4 answers
Posted by Preeti Yadav 3 years, 11 months ago
- 3 answers
Posted by Asha Dey 3 years, 11 months ago
- 1 answers
Gaurav Seth 3 years, 11 months ago
(i) Using crystal field theory, write the electronic configuration of iron ion in the following complex ion. Also predict its magnetic behaviour : [Fe(H2O)6] 2+
(ii) Write the IUPAC name of the coordination complex: [CoCl2(en)2]NO3
Answer:
(i) t2g4 eg2 Paramagentic
(ii) Dichloridobis(ethane-1,2-diamine)cobalt(III)nitrate
Posted by Sachin Rajput 3 years, 11 months ago
- 2 answers
D J 3 years, 10 months ago
Gaurav Seth 3 years, 11 months ago
Anisotropy:-
- Due to regular arrangement of constituent particles, the different particles are fall in different ways of a crystalline solid. The values of properties like electrical conductivity and thermal expansion not remains same in all the direction this is called anisotropy.
Posted by Drishty Kamboj 3 years, 11 months ago
- 1 answers
Mahi Kumari 3 years, 11 months ago
Posted by Ritu Sahu 3 years, 11 months ago
- 1 answers
Posted by Bhawna Bhardwaj 3 years, 11 months ago
- 2 answers
Yogita Ingle 3 years, 11 months ago
Denaturation of Proteins
• The most stable conformation of a protein at a given temperature and the pH is known as its native state.
• The loss of biological activity of proteins when a protein in its native form, is subjected to physical change like change in temperature or chemical change like change in pH, is called denaturation of protein.
• For example: (i) Coagulation of egg white on boiling, (ii) curdling of milk which is caused due to the formation of lactic acid by the lactobacillus bacteria present in milk.
Tanya ?? 3 years, 11 months ago
Posted by Piyush Barde 3 years, 11 months ago
- 2 answers
Ankit Baghel 3 years, 11 months ago
Yogita Ingle 3 years, 11 months ago
(i) Benzoic acid is a stronger acid than acetic acid due to the electron withdrawing effect of benzene ring which stabilizes the carboxylate anion while alkyl group destabilises the carboxylate anion due to electron donating nature.
(ii) Methanal is more reactive than ethanal towards Nucleophilic addition reaction due to steric and electronic reasons. Presence of methyl group in ethanal hinders the approach of nucleophile to carbonyl carbon than in methanal. Methyl group also reduces the electrophilicity of the carbonyl more effectively than in methanal.
Posted by Piyush Barde 3 years, 11 months ago
- 1 answers
Gaurav Seth 3 years, 11 months ago
Answer: 25%
Explanation: Isotonic solutions are those solutions which have the same osmotic pressure. If osmotic pressures are equal at the same temperature, concentrations must also be equal.
for non electrolytes such as urea
for electrolytes such as
= osmotic pressure
C= concentration
R= solution constant
T= temperature
i= vant hoff factor
For urea solution: 3 g of urea is dissolved in 100 ml of solution.
For solute A: 1.8 g of A is dissolved in 100 ml of solution.
As
0.25 0 0
Total moles after dissociation =
thus
Thus degree of dissociation is 25%.
Posted by Piyush Barde 3 years, 11 months ago
- 2 answers
Yogita Ingle 3 years, 11 months ago
In ZnO, Zn2 ions occupy the interstitial sites and electrons are trapped in the interstitial sites for neutralization. Crystals that show such type of defects are generally colored. Zinc oxide is white in color but on heating, it turns into yellowbecause it loses oxygen reversibly at high temperature.
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
Dinesh Kumar 3 years, 10 months ago
1Thank You