CBSE > Class 12 > Chemistry | CBSE Board | Homework Help

Mereto qs yad nahi he par question tha koi compound a 6 7 reaction ke baad product deta hai intial mole dia tha abd product ta mole pucha tha jitna mole nikala tha use 25 g benzene dal kar solution banaya humko elevation in bp nikala tha

0Thank You

G K 7 years, 2 months ago

Aayush Q. btao na plzz,..... 12th class me poac kha use hua hoga, I want to know...... PLZZ

0Thank You

G K 7 years, 2 months ago

. It is very useful technique....marks to nhi katne chahiye the bro..... Can u tell me the Q. .....

0Thank You

ANSWER

Hllo friends.??‍♀️.... .chemistry part II page no. 412 per jo table h vo board me aati h kya...kse yaad kru isse?

Posted by G K 7 years, 2 months ago

CBSE > Class 12 > Chemistry

6 answers

G K 7 years, 2 months ago

But bro yaad to kerna padega mujhe to?

0Thank You

Ayush Parija 7 years, 2 months ago

Hamara to mana. Kie he

0Thank You

Ayush Parija 7 years, 2 months ago

Not required

0Thank You

G K 7 years, 2 months ago

But sir(my chem. teachr) ne yaad krne ko bola h......

0Thank You

Ayush Parija 7 years, 2 months ago

0Thank You

Ayush Parija 7 years, 2 months ago

0Thank You

ANSWER

What is the use of initial rate method?

Posted by Anshu Giri 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Henary's law

Posted by Kalyani Rani 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Atomic no. 39 se 48 tk ke element ke name yaad rkhne ki trick......

Posted by G K 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

G K 7 years, 2 months ago

☺️.... Thank u so much.....☺️

1Thank You

Anshu Giri 7 years, 2 months ago

Yari zara nibhana mout tk rha (m )rhukawat pde (to) aag m cudhe

1Thank You

ANSWER

2 fromyl ethanoic acid structure

Posted by Paras Gupta 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

General formula ammine

Posted by Rishabh Pal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Karan Sinh Jadav 7 years, 2 months ago

NH2

1Thank You

Peeyush Kumar Jain 7 years, 2 months ago

R-NH2

0Thank You

Anshu Giri 7 years, 2 months ago

NH2

1Thank You

ANSWER

What are unsaturated hydrocorbon

Posted by J.G. Akash 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Raj Verma 7 years, 2 months ago

An unsaturated hydrocarbon is a hydrocarbon containing at least one double or triple bond. An alkene is a hydrocarbon containing double bonds. The general formula of an alkene is CnH2n.

1Thank You

ANSWER

Kolbe's reaction

Posted by Manas Agarwal 7 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

Jayaasrii?? Jayaasrii 7 years, 2 months ago

When phenol reacts with NaOH it gives sodium phenoxide ion further when it rects with Co2 at 400 K and with H + ion it gives salicylic acid

1Thank You

Karan Kumar 7 years, 2 months ago

?????

1Thank You

G K 7 years, 2 months ago

Conversion of phenol to salicylic acid.....

1Thank You

ANSWER

What is the basicity order in amene ,phenyl , ethyl, seconary ethyl, methyl , secondary methyl, and ammonia ? Give reason also.

Posted by Aditya Singh 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why fluorine dont have +1 ox. State eg. 1s² 2s² 2p5

Posted by Samyak Jain 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Punia 7 years, 2 months ago

Fluorine is the most electronegative element in periodic table tendency to gain electron not to lose electron. Also to acquire a stable electronic configuration.

1Thank You

ANSWER

Wat is meant by catenation property?

Posted by Saravanakumar Poornimadevi 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Punia 7 years, 2 months ago

Tendency to form multiple bond and multiple compound using covalt bond and to form stable compound

2Thank You

ANSWER

Write the cell reaction and calculate the EMF of the following cell at 298°c Sn(s)/Sn+2(0.004M)//H+(0.020M)/H2(g)(1bar)/pt(s)[given:E°Sn+2/sn=-0.14v]

Posted by Joshnitha Py 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Difference Between hcp and ccp

Posted by Harjot Singh Gill 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

G K 7 years, 2 months ago

ccp ---> ABCABC type..... , hcp---> ABAB type....

0Thank You

ANSWER

Why ethyl alcohal is added to chloroform bottles

Posted by Rinkle R.K 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Calculate emf of cell Sn/sn2+(0.050M)

Posted by Vipin K 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Nitrogen does not form NF5 . Why?

Posted by Amli Union 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Harkamal Sidhu 7 years, 2 months ago

Bcz in nitrogen there is no vacent d orbtial

3Thank You

Arjun R 7 years, 2 months ago

Due to electronegativity?

1Thank You

ANSWER

33%more internal options info

Posted by Jaish Chimnani 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Amandeep Kumar 7 years, 2 months ago

Haan sahi hai...

1Thank You

ANSWER

Structure of cellulose acetate

Posted by Abhijeet Yadav 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhishek Singh 7 years, 2 months ago

Ctfyg

0Thank You

ANSWER

Wurtz rcn and wurtz fitting rcn same hi h to firr alg alg kiu pdhte h......

Posted by G K 7 years, 2 months ago

CBSE > Class 12 > Chemistry

5 answers

G K 7 years, 2 months ago

Thanx Nitish.....

0Thank You

Nitish Sharma 7 years, 2 months ago

Wurtz rexn-------Rx + 2Na gives R-R + 2Nax Wurtz fitting-----chloro/bromo,etcBenzene + 2Na + Ch3X gives Toulene + 2Nax We study them differently because fitting is aspecially for Benzene Ring reactions.

0Thank You

Karan Kumar 7 years, 2 months ago

Ha megha pata nahi tha yaar tbhi to smjha raha tha na kya karu Mgr tu kuch jada smj daar hai dost muje se bhi jada yu soch exaple nahi diya abhi tk tere que ka yr????

1Thank You

G K 7 years, 2 months ago

Thank u karan, mujhe to pta hi nhi tha ki 'and' 'or' ko kse use krte h.......

0Thank You

Karan Kumar 7 years, 2 months ago

Pheli baat wurtz rcn OR wurtz fitting rcn bolo tikh hai agr tum {and} lagao gi to ye dono same naam nahi fir alag alag naam ho jaaye ge or agr {OR} lagao gi to wo ek hi name rahe ge

2Thank You

ANSWER

Whether the amino acid molecules are laevo or dextro n how...??

Posted by Rishabh Mehrotra 7 years, 2 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Give one example of a neutral amino acid .why is it neutral in nature?

Posted by Surbhi . 7 years, 2 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Mehrotra 7 years, 2 months ago

Lysine is alpha amino acid contains the Alpha amino group and Alpha Carboxylic group and also a lysyl side chain having chemical formula C6H14N2O2.........thus containing d similar no. Of groups tends to reflect d neutral behaviour of d compound(amino acid).....moreover...Arginine n Histidine r another such examples.....

2Thank You

ANSWER

What is brown ring test?

Posted by Anubhav Kumar 7 years, 2 months ago

CBSE > Class 12 > Chemistry

3 answers

G K 7 years, 2 months ago

[Fe(H2O)5 NO] SO4

2Thank You

G K 7 years, 2 months ago

FeSO4 + H2SO4 + HNO3 - - - > [Fe(H2O) NO] SO4 (Brown ring complex)..... THERE IS 1 THING TO BE NOTED IN THIS COMPLEX i. e. Fe per +1 O. S h, jo ki keval issi complex hoti h.....

3Thank You

G K 7 years, 2 months ago

Used for identification of Fe3+ ions nd NO3 - ions in soln........

3Thank You

ANSWER

I don't able to find intext questions of chapter is it available??

Posted by Ravi Shankar 7 years, 2 months ago

CBSE > Class 12 > Chemistry

2 answers

Saloni S 7 years, 2 months ago

in this app go to chemistry icon after pressing you see the list of chapter select and then press the second icon just after the notes icon you find in text and exercise questions together with solution is best for reference

1Thank You

Pp Shukla 7 years, 2 months ago

if you have refrence book then all intext ques.&ans are given there

2Thank You

ANSWER

Styrene ko benzoic acid me kse convert krenge...... Plzz help....

Posted by G K 7 years, 2 months ago

CBSE > Class 12 > Chemistry