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whate is Ionic radious?

Posted by Abhishek Yadav 6 years ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 6 years ago

Parent atom se electron nikalne ya dalne ke bad jo cation ya anion banta he uss atom ki radii ko ionic radii kehte he, anionic radii> parent > cationic radii

1Thank You

ANSWER

Which is reducing oxide in seo2 and Teo2 and how?

Posted by Manabendra Chatterjee 6 years ago

CBSE > Class 12 > Chemistry

2 answers

Riti Bansal 6 years ago

Seo2

0Thank You

Sanchari Roy 6 years ago

SeO2 is a more reducing oxide than TeO2 because reducing property of oxides of gr.16 decreases from SO2 to TeO2

0Thank You

ANSWER

Which one have more shielding effect?LANTHANOIDS OR ACTINOIDS

Posted by Asna Khan 6 years ago

CBSE > Class 12 > Chemistry

4 answers

Riti Bansal 6 years ago

Actinoid

1Thank You

Shatayu Ganvir 6 years ago

Actinoids because 5f e-s have poor sheliding than 4f so actinoid contractiob has ahiger valur

1Thank You

Asna Khan 6 years ago

Bt #tammanna_sharma actinoids have poor sheilding than lanthanoids...nah

1Thank You

Tamanna Sharma 6 years ago

Actinoids

1Thank You

ANSWER

Out of carbon and carbon monoxide which is a better reducing agent at lower temperature range in the blast furnace to extract iron from oxide ore.???????????

Posted by Kriti Sharma 6 years ago

CBSE > Class 12 > Chemistry

7 answers

Riti Bansal 6 years ago

0Thank You

Nishant Sharma 6 years ago

YEAH :)?????????

0Thank You

Kriti Sharma 6 years ago

Yes it is co i searched it yaar?....

2Thank You

Nishant Sharma 6 years ago

REVISE METALLURGY KIRTI :) ?????????? ANSWER IS CO.IT CAN BE EXPLAINED ON THE BASIS OF INTERSECTION OF CURVE WITH FE2O3 AND FE304 WITH CO AND CO2 CURVE.??????????????????

0Thank You

Sanchari Roy 6 years ago

CO is a better reducing agent at low temperature.

0Thank You

Asna Khan 6 years ago

Oops...am sorry yaar.... At low temperature i think carbon monoxide... Because coke or arbon is used for giving appropriate temperature nah..... Well i think you should search in google or anything else...

1Thank You

Asna Khan 6 years ago

Carbon #ELLINGHAM_DIAGRAM

0Thank You

ANSWER

Imp.topic for 2020 chemistry paper

Posted by Dinesh Kodan 6 years ago

CBSE > Class 12 > Chemistry

2 answers

Riti Bansal 6 years ago

Organic chemistry

0Thank You

Shreya .. 6 years ago

See previous year papers, you'll get to know....?

2Thank You

ANSWER

Differentiate between pig iron and cast iron????????

Posted by Kriti Sharma 6 years ago

CBSE > Class 12 > Chemistry

8 answers

Nishant Sharma 6 years ago

ALL I SEE IS ROSES? ?????????????

1Thank You

Tamanna Sharma 6 years ago

babu rao aapte style to chemistry ke paper me marna wo bhi full gulabri ke sath Nishant and kriti

2Thank You

Nishant Sharma 6 years ago

YE BABU RAO KA STYLE HAI?? #TAMANNA ?????????

1Thank You

Tamanna Sharma 6 years ago

Boards me bhi advertise kiya he kya

3Thank You

Tamanna Sharma 6 years ago

I think tum lux soap ki advertisement karke hi rahoge

2Thank You

Nishant Sharma 6 years ago

CAST IRON- HARD BUT BRITTLE FORM OF RAW IRON PRODUCED BY MELTING AND COOLING OF PIG IRON.CARBON CNOTENT OF CAST IRON IS 3% WHEREAS PIG IRON CONTAINS ABOUT 4%OF CARBON. :) ???????????????? IT SEEMS YOU HAVE LOT OF DOUBTS IN METALLURGY.REVISE IT PROPERLY KIRTI????

3Thank You

Tamanna Sharma 6 years ago

Pig iron- ( kacha loha) 4% carbon and various impurities,,,,,,,cast iron- pig iron + O2+ coke ( less 3% only) hard and brittle.

2Thank You

Asna Khan 6 years ago

The iron obtained from blast furnace is called pig iron 'nd it contains 4% carbon &other impurities. Cast iron obtained by melting pig iron with scrap iron 'nd it contains 3% carbon. Thats all;

2Thank You

ANSWER

Contact method for preparation of sulphuric acid ... Imp. H kya ????

Posted by Saloni Verma 6 years ago

CBSE > Class 12 > Chemistry

4 answers

Shreya .. 6 years ago

Yeah

0Thank You

Pushkar Gupta 6 years ago

And prepration of k2 cr2 o7 is also

0Thank You

Pushkar Gupta 6 years ago

Ha bhai ayega confirm hai

0Thank You

Tamanna Sharma 6 years ago

Yes

0Thank You

ANSWER

Which ratios are important?

Posted by Sweta Nath 6 years ago

CBSE > Class 12 > Accountancy

2 answers

Ankit Kumar 6 years ago

Sacrificing ratio

1Thank You

Nitesh Aggarwal 6 years ago

Profitablity

2Thank You

ANSWER

what to learn in theory ... please rply urgent???

Posted by Mr Franky 6 years ago

CBSE > Class 12 > Accountancy

0 answers

ANSWER

Find the Value of log e

Posted by Narayanan. G 6 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Copper and silver lie below in the electrochemical series and yet they are found in the combined state as sulphides in nature why????????

Posted by Kriti Sharma 6 years ago

CBSE > Class 12 > Chemistry

5 answers

Nishant Sharma 6 years ago

YES?????TAKIYAKALAM????????????

0Thank You

Nishant Sharma 6 years ago

I HOPE THAT IT HELPS YOU. #KIRTI???????

0Thank You

Tamanna Sharma 6 years ago

Ye har question ke bad roses banana tumhara takiyakalam he kya

1Thank You

Kriti Sharma 6 years ago

Yes ??

0Thank You

Nishant Sharma 6 years ago

MAYBE DUE TO STRONG POLARIZING POWER OR DUE TO HIGH TEMPERATURE INSIDE EARTH THEY REACT TO FORM SULPHIDES. :) ????????????????????????????

1Thank You

ANSWER

Distinguish between beeta -- D -- GALACTOSE And beeta -- D -- Glucose.........

Posted by Tapan Pandey?? 6 years ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 6 years ago

Although the structure was quite similar the only difference at C4 because glucose and galactose are c4 epimer

1Thank You

ANSWER

What will be the level of chemistry paper? any idea.! Or the level will be exactly like physics. ???

Posted by Ďãřşháñăã Yadav ? ? ? 6 years ago

CBSE > Class 12 > Chemistry

8 answers

Ďãřşháñăã Yadav ? ? ? 6 years ago

Best of luck guys. ?

1Thank You

Ďãřşháñăã Yadav ? ? ? 6 years ago

thanks all of you hope paper simple aaye. physics jesa dhoka na ho issue bar. ??

1Thank You

Aman Kumar 6 years ago

Let's see

1Thank You

Lakshya ? 6 years ago

Chemistry hr bar bhut easy hi ataa h....but esme marking thodi hard kr dete h....

3Thank You

Aman Kumar 6 years ago

Darshana?, mai tumhara jada time waste nhi karunga?..aur na hi jada unwanted chats karunga?( jaisa ki tumne pichle baar bola tha) ...but ye bata do ki ...Tum kaisi ho?.Tum thik toh ho na? I mean, waha bahot dange ho rahe h.. that's I asked? apna dhiyan rakhna....nd All the best for exam

1Thank You

Meghna Shrivastav? 6 years ago

Right ??

1Thank You

Ďãřşháñăã Yadav ? ? ? 6 years ago

ohk thanks ?

2Thank You

Aman Kumar 6 years ago

According to me, I think ?chemistry paper will not be like physics paper..becz, pore boards mai ek subject hard aata hi hai and uska kota physics ne pura kar diya hai...but then also we can't take any risk...WO kehte hai na:- " Dudh ka jala chasch bhi.. fuuk-fuuk ke pita hai"??

5Thank You

ANSWER

Is structure of PVC,bakelite,nylon 6,6 is important

Posted by Shalini Singh 6 years ago

CBSE > Class 12 > Chemistry

4 answers

Lakshya ? 6 years ago

Yaaaa its important

0Thank You

Asna Khan 6 years ago

Yes not only this all the structures are imp% one.

0Thank You

Shalini Singh 6 years ago

0Thank You

Kriti Sharma 6 years ago

Yes vvvvvimportant ????????

0Thank You

ANSWER

What is the role of flux in metallurgical processes???????

Posted by Kriti Sharma 6 years ago

CBSE > Class 12 > Chemistry

2 answers

Nishant Sharma 6 years ago

TO DECREASE THE MELTING POINT OF AN ORE AND TO REACT WITH IMPURITIES TO FORM SLAG. :) ???????????????

1Thank You

Asna Khan 6 years ago

In metallurgy flux is add with impurity (i.e,gangue)and forms a slag... Slag get seperated more easily from the ore than gangue

1Thank You

ANSWER

Guys, kya biomolecules me NCERT me given proteins ki table learn karne ki need hai,is this important

Posted by Tamanna Sharma 6 years ago

CBSE > Class 12 > Chemistry

4 answers

Lakshya ? 6 years ago

Mcq m ques aa skta h....so be prepared

0Thank You

Asna Khan 6 years ago

Not imp% Bt you read it once... Bcoz cbse board have the character of a chameleon ?

2Thank You

Tapan Pandey?? 6 years ago

But .....some are there which we have to learn like 3,4,5,6,7,12,15,16,18,19. ?✍️✍️✍️✍️

1Thank You

Tapan Pandey?? 6 years ago

As ur wish

1Thank You

ANSWER

What were the challenges that india faced after the independence proposal ?

Posted by Manish Singh Mahamna 6 years ago

CBSE > Class 12 > Political Science

2 answers

Paoneo Haokip 6 years ago

India faced 3 challenges 1.unity 2.democracy 3.development

1Thank You

Dan • 6 years ago

◆Partion ◆Integration of states ◆state reorganisation{drawing of internL boundaries} ◆election of 1952 {our first election}

1Thank You

ANSWER

Relevance of nam in recent times

Posted by Salwa Shaik 6 years ago

CBSE > Class 12 > Political Science

2 answers

S J 6 years ago

Now that the cold war has ended and the US has become the sole superpower, NAM has shifted its focus from a political mediator to more of an economic institution that promotes growth and development of the underdeveloped or thr newly decolonized countries.

1Thank You

Dan • 6 years ago

Trying to ensure peace all over the world

0Thank You

ANSWER

Syllabus kase revise kru??

Posted by Satinder Kaur 6 years ago

CBSE > Class 12 > Accountancy

5 answers

Satinder Kaur 6 years ago

Right guys ??

1Thank You

Ařțhîä.. Čřìśtaín ?? 6 years ago

Some boys have no maners how to talk and this very vry bad for their future ???

3Thank You

Gurditta Padda 6 years ago

1Thank You

Prerna Shukul 6 years ago

Don't use these type of bad language. Mind your language.

6Thank You

Rahul Chauhan 5 years, 11 months ago

Nikal lawde pahele fursat se

1Thank You

ANSWER

How is your practice?

Posted by Amaira Shamsi 6 years ago

CBSE > Class 12 > Accountancy

0 answers

ANSWER

I am fail in main subject but my results is pass with the help of additional subject can I give compartment in main subject

Posted by Anjali Kashyap 6 years ago

CBSE > Class 12 > Chemistry

2 answers

Asna Khan 6 years ago

Not necessary Bt if you want that sub for your higher studies,you should write it once more..... Is that sub physics??? If yes....don't worry friend The corrections will be liberal....

1Thank You

Tamanna Sharma 6 years ago

Yes if you want to opt this subject for higher study but if English then it's compulsory to pass in it

0Thank You

ANSWER

Calls in advance accounts nature in traditional approach ??

Posted by Gauri Kapoor 6 years ago

CBSE > Class 12 > Accountancy

0 answers

ANSWER

Is ethylene-di-amine a chelating ligand???

Posted by Asna Khan 6 years ago

CBSE > Class 12 > Chemistry

5 answers

Asna Khan 6 years ago

Thanku#shreya

0Thank You

Shreya .. 6 years ago

All polydentate ligands are chelating ligands asna......

1Thank You

Nishant Sharma 6 years ago

YES.BECAUSE IT FORMS RING STRUCTURE..

1Thank You

Asna Khan 6 years ago

Yeah i know that..... Bt a chelating ligand is that a ligand can bind through 2 donor atoms....same definition for bidentate alsooo..... So ask tht question....

0Thank You

Sanchari Roy 6 years ago

Its a bidentate ligand.

1Thank You

ANSWER

Noncongressism

Posted by Manjistha Rai 6 years ago

CBSE > Class 12 > Political Science

2 answers

Dan • 6 years ago

Parties opposes ideology and prgms of INC

1Thank You

Muskan Rattan 6 years ago

The parties that opposed the Congress ideology and programmes got together to form anti Congress front. The socialist leader Ram Manohar Lohia gave this strategy the name of ' non- congressism '.

0Thank You

ANSWER

Sucrose is a reducing sugar । Give reason......

Posted by Tapan Pandey?? 6 years ago

CBSE > Class 12 > Chemistry

5 answers

Tapan Pandey?? 6 years ago

0Thank You

Tamanna Sharma 6 years ago

It's ok, vaise me phele hi samaj gai thi ki wrong typing he

1Thank You

Tapan Pandey?? 6 years ago

Sorry..... typing error......?

1Thank You

Kriti Sharma 6 years ago

Non reducing Sugars are those Sugars which do not have free aldehydic or Ketonic group and do not reduce fehling's solution on tollens reagent are called non reducing Sugars .....for example sucrose

1Thank You

Tamanna Sharma 6 years ago

Sucrose is not reducing sugar it's non reducing sugar reason- not give fehling and tollen test

1Thank You

ANSWER

Yaar? till now i have not revised anything. How to revise complete chemistry in 2 days

Posted by Gaurav Rawat 6 years ago

CBSE > Class 12 > Chemistry

5 answers

Vishal Pathak 6 years ago

Just do those intext and back exercise ques. , refer to answers .. This way u will be revising the concepts and will also be getting ready to answer the same ques. in the exam itself ??

0Thank You

Nishant Sharma 6 years ago

???????????

0Thank You

Kriti Sharma 6 years ago

Why why !!!! Ist of all are you crazy ....but now dont feel tensed ...... Start revising chemistry in everyday life, polymers ,biomolecules, solutin ,surface chemistry ,metallury as these are esy and scoring ........see previous year questions of these chapters,' jo bhi karna ,wo perfectly karna okkkk '' udta udta ni.......learn naming reactions by heart ..one of them will surely come ,,,,surely!!!!! Understand....read notes of p block and dand f block elements ....get the pattern and you can solve the questions,,, GO AND SEE VEDANTU VIDEO OF ORGANIC CHEMISTRY SPRINT......it will be really helpful ....you wil get a basic idea by this video....????????????????????

0Thank You

Prakriti Semwal 6 years ago

Tumne jo notes banae honge usse revise karo. Book padhne mat baith jana.

0Thank You

Rishabh Saxena 6 years ago

Don't be panic say all is well ?

0Thank You

ANSWER

Define disarmament

Posted by Nitish Mehta 6 years ago

CBSE > Class 12 > Political Science

2 answers

Sonu Yadav 6 years ago

Disarmament ...arms control and confidence building are important means and corporation.

1Thank You

Muskan Rattan 6 years ago

Disarmament is the process of reducing or eliminating military forces and weapons through cooperation, treaties, and oversight. OR Disarmament is not something that can be easily defined in a few words. In truth, there are four key parts to it: Reduction in quantity of military items Formal meeting and treaty to achieve Emphasis on weapons and tools Body or group overseeing the process These four parts lead to a detailed definition, and a detailed plan of action as well. Disarmament is usually focused on weapons, but can include other areas, such as tools and technologies.

2Thank You

ANSWER

Rate of interest on calls in advance and calls in arrears in company

Posted by Anita Shrivastava 6 years ago

CBSE > Class 12 > Accountancy