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

Fluorine is more electro - ve than chlorine , it can oxidize chlorine to its +3 oxidation state thus clf3 exist , while chlorine being less electro - ve can' t oxidize F to + 3oxidation state thus fcl3 not exist

2Thank You

Muskan Patra 8 years, 1 month ago

F is most electronegative element in periodic table so +3 oxd state cannot shown by f

0Thank You

ANSWER

how to collect at least passing marks in chemistry

Posted by Kajal Jaiswal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Mahima Kumari 8 years, 1 month ago

Saala bhar to para nhi ab kaun sa ghas UK Harome

0Thank You

Mahima Kumari 8 years, 1 month ago

Parna band kar

0Thank You

ANSWER

Structure of clf3

Posted by Sukhpreey Kaur 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Vineet Gupta 8 years, 1 month ago

Hybridization is sp3d and shape is t - shaped

0Thank You

Aman Sonowal 8 years, 1 month ago

F | :c-F | F

0Thank You

ANSWER

In making 4-bromo nitrobenzene we will have to add NO2 first or Br ....why??

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Vineet Gupta 8 years, 1 month ago

Br first the no2 becaus no2 is meta directing it will diect br to get into meta pos , thereby forming 3 bromo nitrobenzene , while Br is o,p directing thus it will form required product

1Thank You

Ayush Balyan 8 years, 1 month ago

Except ether and alcohol ; group containing 'o' (oxygen) are meta directing while alcohol and ether are ortho and para directing

1Thank You

Dilnawaz Sheikh 8 years, 1 month ago

Br first then NO2

1Thank You

ANSWER

Leather get hardened after tanning

Posted by Rajinder Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sanat Zehra 8 years, 1 month ago

The coagulation of positive and negative particles in the process of tanning results in the hardening of leather.

0Thank You

ANSWER

Principle of mond's process?

Posted by Nishant Bansal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Sanat Zehra 8 years, 1 month ago

Based on principle of vapour phase refining

0Thank You

Madiha Faraz 8 years, 1 month ago

Refining nickel metal

0Thank You

ANSWER

What is agitation?

Posted by Nishant Bansal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Sanat Zehra 8 years, 1 month ago

putting into motion by shaking or stirring, often to achieve mixing.

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Hila dhula ke ache se mix karna

2Thank You

ANSWER

How to convert CH3-CN to CH3COOH ......

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Shivanshu Yadav 8 years, 1 month ago

Complete hydrolysis h2o/h^+

1Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Yes or No question thodi hai ye....??

2Thank You

Aisha Grewal 8 years, 1 month ago

Yes

0Thank You

ANSWER

Can I start writing answer from last question

Posted by Abhishek Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Sanat Zehra 8 years, 1 month ago

Yes

0Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

No , i will kill you

2Thank You

ANSWER

Unlike xenon, no distinct chemical compound of helium is known. Give reason ?

Posted by Alefiya Ziya 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Muskan Patra 8 years, 1 month ago

Due to high ionisation enahalpy of helium

1Thank You

ANSWER

How is ammonia synthesied by Haber's process? How does it react with a. Cl2 b. Nessler's reagent ?

Posted by Richa Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Madiha Faraz 8 years, 1 month ago

N2+3H2gives2NH3

0Thank You

ANSWER

Why do transition metals form good alloys

Posted by Surya Pratap Tomar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Amarvir Amarvir 8 years, 1 month ago

because each metal belong to transition series has same or similar size due to contractions along the series. so the

3Thank You

ANSWER

How delta formation take place? What is tha reason for it?

Posted by Milan Arora 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Amarvir Amarvir 8 years, 1 month ago

sea water is full of electrolytes and when it combines with river water which is in form of colloidal suspension then coagulation takes placeand deltas formed which cannot flow along river

1Thank You

ANSWER

Adsorption example

Posted by Anki Kr 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Jin Kazama 8 years, 1 month ago

Mud on cloth ?

0Thank You

ANSWER

Why does H2 and O2 dont react under room temperature???

Posted by Agrima Chauhan 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Harsh More 8 years, 1 month ago

Activation energy is high

3Thank You

ANSWER

In making 4bromo nitrobenzene from benzene...... First should we attach nitro group or bromo group .....WHY??

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Kanak Tiwari 8 years, 1 month ago

What is nitro group first

2Thank You

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Why

2Thank You

Avee Singh 8 years, 1 month ago

I guess nitro

1Thank You

ANSWER

When a coordination compound NiCl2.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write a)structural formula of the complex, b) IUPAC name of the complex

Posted by Alefiya Ziya 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Important chapter for scoring 90+

Posted by Ruhaan Krma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Mahima Kumari 8 years, 1 month ago

Wow chemistry me bhi optics

1Thank You

Avee Singh 8 years, 1 month ago

Organic in chemistry

0Thank You

Avee Singh 8 years, 1 month ago

Optics

0Thank You

Jin Kazama 8 years, 1 month ago

Every chapter ?

1Thank You

ANSWER

Boiling point of ethanol is higher comparison to methoxymethane

Posted by Sheetal Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Satyendra Tomar 8 years, 1 month ago

Due to hydrogen (H) bond

1Thank You

ANSWER

10.11 ka 7 th part

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Thanks buddy??

1Thank You

Piyush Bhatee 8 years, 1 month ago

First add Mg Then it will be CH3MgBr Now check the preparation of ketone on pg. 355 you will get the answer

1Thank You

ANSWER

what are the observations made in the galvanic cell after the completion of the circuit?

Posted by A B 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Structure of SO4-2

Posted by Sunny Arora 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What class of drug is Ranitidine ?

Posted by Hitesh Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Princess Fatima 8 years, 1 month ago

Antacids

1Thank You

Ayush Mukherjee 8 years, 1 month ago

The Drug has a Pharmalogical effect against acids

0Thank You

Ayush Mukherjee 8 years, 1 month ago

Antacids

0Thank You

ANSWER

Ethene to but-2-yne

Posted by Saurav Sharma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sakshi Singh 8 years, 1 month ago

Firstly react etene with Cl/sunlight then sodium acetanilide se krva ke but1 yne bn jayega thn HCl acc. To anti markonikove n thn alc. Koh n the req. Product will be frmed☺

0Thank You

ANSWER

What is victor Mayer's test and for which compound it is used for??

Posted by Hemant Bhardwaj 8 years, 1 month ago

CBSE > Class 12 > Chemistry