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What is the structure and monomer unit of neoprene

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Nidhi Mishra 8 years ago

chloroprene which is 2chloro butane 1,3diamine

ANSWER

Why do ferromagnetic substance show better magnetism than anti ferromagnetic substance?

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Ayushi Tyagi 8 years ago

Bcz all the domains are aligned in the same direction in ferromagnetic substances

ANSWER

Based on the nature of intermolecular forces classify the following solids : sodium sulphate,hydrogen

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Any of you use insta.? Follow me(abhinay021) so I can follow u.

Posted by Abhinay Ab 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Prayag Shandilya 8 years ago

prayag_shandilya follow me so that I can follow u

ANSWER

What happen when cdcl2 is doped with Agcl?

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Udbhav Atre 8 years ago

Cd2+ ions occupy the Ag+ sites and thus produces cationic vacancies in crystal

ANSWER

Electron gain enthalpy of halogen are largely negative

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Ayushi Tyagi 8 years ago

Wrong ans #prayag.....ans is bcz they need just one electron to attain stable noble gas configuration

Prayag Shandilya 8 years ago

Bcz they r very electronegative and hence reluctant towards gaining electrons

ANSWER

Red phosphorus is less reactive than white phosphorus.

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Ayushi Tyagi 8 years ago

Bcz red P exists in polymeric structure whereas white P exists in discrete tetrahedral structure

Pruthviraj Biradar 8 years ago

Due to its angular strain in p4 structure

ANSWER

What is Cationic detergents?

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Ruby Bajwa 8 years ago

Detergents having more cationic part than anionic part are called cationic detergents.eg: trimethyl tetra decyl ammonium sulphate.

ANSWER

The metallic radii of the third (5d ) series of transition elements are virtually same as those of the corresponding members of the second series

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Ayushi Tyagi 8 years ago

Bcz of lanthanide contraction

ANSWER

What is differences between lanthanide and actinoid contraction based on structure variability and chemical reactivity

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is van Arkel method?

Posted by Mohit Khoth 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Ayushi Tyagi 8 years ago

Method used for refining titanium....based on vapour phase refining

ANSWER

Why are low spin tetrahedral complexes rarely observed?

Posted by Divya Sen 8 years ago

CBSE > Class 12 > Chemistry

9 answers

Divya Sen 8 years ago

Thnx

Ruby Bajwa 8 years ago

Ans: the orbittal splitting energies are not sufficiently large for forcing pairing.pg:252

Divya Sen 8 years ago

Ok bro no problem but i think this tamanna wants to mess with me unneccessarily

Yaduvanshi Yaduvanshi 8 years ago

Sister sorry if I hurt you bt I read your chat thatswhy I am ask

Divya Sen 8 years ago

Toh ye bkwas bnd kro apna hello hii

Yaduvanshi Yaduvanshi 8 years ago

Kya karogi jankar

Divya Sen 8 years ago

Hello arey batao toh sahi ho kon

Yaduvanshi Yaduvanshi 8 years ago

Hellow divya

Divya Sen 8 years ago

What is this? I asked for the ans i m not asking your phone no. If anyone knows the ans may plz tell.

ANSWER

In chemistry how many marks of sums can be asked???

Posted by Urvi Patel 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Pratik Patra 8 years ago

Most probably 15 to 20marks

ANSWER

What is Raoult law

Posted by Chirag Kumar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Pratik Patra 8 years ago

It sts dat partial vapour pressure of each component is directly proportional to their mole fraction if both solute n solvent r non-volatile.

ANSWER

Current news :- Ek ldke ka physics ka 9 marks ka paper reh gya aur usne suicide krli

Posted by Ramanjit Kaur 8 years ago

CBSE > Class 12 > Chemistry

5 answers

Yaduvanshi Yaduvanshi 8 years ago

Sucide is not a solution of any proplem it only hurts parents lifetime

Ramanjit Kaur 8 years ago

Google se search krke dekho mil jayegi

Vithika Singh 8 years ago

Hum logon KO to ye news nhi mili tmhe kaha se mil gayi??

Baani N 8 years ago

??????????????????????

Neha Gupta 8 years ago

So sad ???

ANSWER

Friendly craft reaction mechanism

Posted by Ajay Pratap Singh 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Paper ka pattern sample paper jaisa hoga

Posted by Namrata Bhatia 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Daksh Chilkoti 8 years ago

Yes

ANSWER

A first order rxn takes 10 min for 25% decomposition. Calculate t1/2 for the rxn.

Posted by Reshmi Singh 8 years ago

CBSE > Class 12 > Chemistry

5 answers

Aisha Grewal 8 years ago

Vaah prince????

Prince Jaat 8 years ago

Ye padahi ki hi baat hai

Aashifa Siddiqui 8 years ago

Prince ye ab ky h? Pdai ki bat horhi yha

Aashifa Siddiqui 8 years ago

24.7 min

Prince Jaat 8 years ago

काल_ऐक_छोरी__नू_बोली_हक_दिल _!.#टुटया__पाछे_सब_ते__जादा__दरद_होया__करर #म__बोला_मखा__र__बावली__दरद_तो__उस_हरयाणवी #छोरा_त_पुछ_जिसकी_सँटिगं__ #होया__पाछै__गोत_मिलजा__से

ANSWER

Account the following 1.transition elements firm a large no. of complexes? 2.the Enode value for the Mn3+/Mn2+ couple is much more positive than that for Cr3+/Cr2+ couple? 3.Zn is not consider as a transition element?

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

1) small size of metal ions,high ionic charges, availability of d orbitals. 2)Mn2+ acquires extra stability due to half filed d5 d orbital. 3)it doesn't show incomplete configuration of d orbital in its ground sate as well as in any of its oxidation states.

ANSWER

What happened when 1.orthophosphorus is heated 2.XeF6 undergoes complete hydrolysis?

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

Page 180. You will get H3PO4 and phosphine

ANSWER

Which of the solution has higher freezing point 0.05MAL2(SO4)3, 0.1M K3(Fe(CN)6) justify

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Aashifa Siddiqui 8 years ago

Al2(so4)3

ANSWER

Explain Enode value of copper is positive Enode value of Mn is more negative as expected from the trend Cr2+ is a strong reducing agent than Fe2+

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

Its inability liberate H2 from acids. Page 217

ANSWER

Write the formula of the neutral molecule which is isoelectronic

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Name the type of reaction involved in the formation of the following polymers from their respective monomers 1. PVC 2. Nylon6 3.PHBV

Posted by Sohaib Akhtar 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Namrata Bhatia 8 years ago

PVC-Addition polymerisation Nylon6-By heating caprolactum with water at high temp. PHBV-copolymerisation(addition)

ANSWER

Any important topic in chapter 9 coordination compound ?? It vry tough 4 me ... what to do ...plz rply

Posted by Prerna Rathore 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Ayushi Tyagi 8 years ago

Bonding in metal carbonyls

Baani N 8 years ago

Structures

Yaduvanshi Yaduvanshi 8 years ago

Iupac name

ANSWER

Conversions kaise Kare ????????

Posted by Divyam Solanki 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Yaduvanshi Yaduvanshi 8 years ago

Make a flow chart & learn them

ANSWER

what is intrinsic defect

Posted by Riya Sharma 8 years ago

CBSE > Class 12 > Chemistry

2 answers

Riya Sharma 8 years ago

thankyou

Md Allauddin Ansari 8 years ago

When some constituents particles (atoms or ions)occupy an intertitial site then crystal is said to have intertitial defect.

ANSWER

P- Nitrochlorobenzene undergoes nucleophilie substitution faster than chlorobenzene .Explain the resonating structure well.

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How will be questions of chemistry any guess

Posted by Prerna Rathore 8 years ago

CBSE > Class 12 > Chemistry

1 answers

Go Pi 8 years ago

Mostly from previous years

ANSWER

Why an alkylamine is more basic than ammonia

Posted by Neha Tomar 8 years ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

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