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The rate of a particular reaction triples when temperature changes from 50°C to 100°C. Calculate the activation energy of the reaction. [log 3 = 0.4771 (R = 8.314 ] K–1mol–1)

Posted by P S 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Mohit Langade 8 years, 1 month ago

Approx 22.015 kj

ANSWER

what is RS configuration?

Posted by Ishav Sinja 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

how to study electrochemistry

Posted by Ayush Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Nayan Chaturvedi 8 years, 1 month ago

Firstly you learn theory and after learn all reactions

ANSWER

Why why are halogens Ortho para directing even to detectivity

Posted by Vishal Chauhan 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Example of tranquilizer

Posted by Harshit Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Out of NH3 and PH3 which is better reducing agent?

Posted by Lokesh Gupta 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Raj Raushan Raj 8 years, 1 month ago

PH3

ANSWER

Is +1 oxidation state of fluorine is possible

Posted by Mratunjay Hardeniya 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Mratunjay Hardeniya 8 years, 1 month ago

Then what is about HOF

Mansi Kaushal 8 years, 1 month ago

No because its the most electonegative atom in the periodic table

Guru Prasanna 8 years, 1 month ago

No

ANSWER

Zn2+ salt are white while cu2+salt are colored. Why?

Posted by Sam Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Uttam Thakur 8 years, 1 month ago

couse if hemihydrate

ANSWER

What are pseudohalogens

Posted by Deepanshu Sharma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Difference between quartz and quartz glass

Posted by Aditya Tiwari 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Ankita Singh 8 years, 1 month ago

Quartz is a crystalline solid whereas quartz glass is an amorphous solid

ANSWER

what are octahedral voids

Posted by Hardik Monga 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Describe the method for identification of primary secondary and tertiary amines and write the reactions involved in it

Posted by Govind Prajapat 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Uttam Thakur 8 years, 1 month ago

By hinsberg reagent C6H5so2Cl ... 1 amine+Hinsberg R. -soluble in alkali 2 amine+ HR - insoluble in alkali 3 amine +HR -no reaction

ANSWER

Alcohol are highly soluble in water but ether not explain why ?

Posted by Sushil Khalkho 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Aditya Tiwari 8 years, 1 month ago

Due to H -bonding

ANSWER

With increase in molecular weight of 1°amine solubility in water decreases but solubility in fat increases explain why ?

Posted by Sushil Khalkho 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Freshly prepared amine is colored after sometime the become colored explain why ?

Posted by Sushil Khalkho 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

1°amine is more soluble in water then 3°amine explain why ?

Posted by Sushil Khalkho 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why solid have definite volume

Posted by Jeetu Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

define ionisable valency

Posted by Swastika Jha 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is gold number?

Posted by Ajeet Yadav 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Naved Hussain Ansari 8 years, 1 month ago

it is not inuclude in CBSE syllabus

ANSWER

Why flourine has one oxidation state wheras other elements of group 17 have more than two?

Posted by Arpit Yadav 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Arpit Yadav 7 years, 11 months ago

Thnx

Mansi Kaushal 8 years, 1 month ago

Due to absence of vacant d orbital in F

ANSWER

What is lanthanoid contraction

Posted by Deepanshu Sharma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is antichlor

Posted by Deepanshu Sharma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Ethanol to propane 1-ol

Posted by Nitin Chauhan 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Ajeet Yadav 8 years, 1 month ago

CH3CH2OH + SoCl2 -----> CH3CH2Cl +KCN ---->CH3CH2CN + 2H2O/H* -----> CH3CH2COOH + LiAlH4 ------> CH3CH2CH2OH

ANSWER

Is activation energy be negative

Posted by Ravinder Mehla 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sunil Nagar 8 years, 1 month ago

Yes

ANSWER

Is activation energy negative

Posted by Ravinder Mehla 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

I don't read anything in chemistry and I wanna to score 60+ please help!!!!

Posted by Jaya Maheshwari 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Jaya Maheshwari 8 years, 1 month ago

Yaa u r right but how to read chemistry

Prabhat Kumar 8 years, 1 month ago

You cannot score even passing marks without study

ANSWER

How could you convert ethanol to ethane

Posted by Tauseef Raza 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Ajeet Yadav 8 years, 1 month ago

1.Treat ethanol with concentrated sulfuric acid to dehydrate it (the main product is ethylene).2.Treat the newly created ethylene with hydrogen gas on Pd/C in order to hydrogenate it to ethane.

Ajeet Yadav 8 years, 1 month ago

Firstly react ethanol to SoCl2 and then HBr according to markonikov's rule.

ANSWER

Darzen reaction

Posted by Aafreen Khatri 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

protons are present in nucleus while electrons are present in shell??? But why electrons can't present in nucleus and protons can't present in shell

Posted by Sarthak Shukla 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Mansi Kaushal 8 years, 1 month ago

Rutherford ne Yeh hi prove kiya hai bhai baki aap kr lena jb kuch bn jaoge..

Prabhat Kumar 8 years, 1 month ago

Bancho padhai kar jitna ncert me de rakha h

ANSWER

What is chemical kinematics

Posted by Sudhanshu Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

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