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Calculate the values of Bohr's magnetron having atomic no. 25,26,27.

Posted by Niharika Sharma 4 years, 5 months ago

1 answers

Rishu Baghel 4 years, 5 months ago

(35)^1/2=25 (24)^1/2=26 (15)^1/2=27 Use that formula for calculate the bohr's magneton=((n+2)n)^1/2 Where n=no.of unpaired electrons....

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Which elements of lanthanoid and actinoid show variable oxidation states??

Posted by Niharika Sharma 4 years, 5 months ago

CBSE > Class 12 > Chemistry

0 answers

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Structure of 4 oxopantanal

Posted by Harman Kaur 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Jass . 4 years, 5 months ago

CH3-CO-CH2-CH2-CHO

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Explain the mechanism of necrophilic substitution reaction

Posted by Harman Kaur 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Shreya Singh 4 years, 5 months ago

Mechanism of Nucleophilic substitution reaction: Two mechanisms of nucleophilic substitution reaction are discussed here. SN1 reaction and the SN2 reaction, where S represents chemical substitution, N represents nucleophilic, and the number stands for the kinetic order of a reaction.

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Propene Converted into propyne

Posted by Harman Kaur 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Jass . 4 years, 5 months ago

CH3-CH=CH2 Propene + Br2 -> CH3-CH(Br)-CH2(Br) 1,2-dibromopropane + alc. KOH ->. CH3-CH=-CH Propyne First react propene with br2 it will give 1,2-dibromopropane then react the obtained product with alcoholic KOH it will form propyne Hope this will help you!!!!!?

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Friends please koi easy topic BATA do chemistry project k liya

Posted by Mr. Fake... 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Saman Zehra 4 years, 5 months ago

Surface chemistry Alcohol phenol ether Haloalkanes and haloarenes Solid states

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General characteristics of group 15 elements with reference to electron gain enthalpy

Posted by Harsh Singh 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Mahima Pattanayak 4 years, 5 months ago

(i) Electronic configuration: All the elements in group 15 have 5 valence electrons. Their general electronic configuration is ns2 np3. (ii) Oxidation states: All these elements have 5 valence electrons and require three more electrons to complete their octets.

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Le Chateliers principle

Posted by Sumit Kumar 4 years, 5 months ago

CBSE > Class 12 > Chemistry

3 answers

Siddharth Rawat 4 years, 5 months ago

in exothermic reactions le chatlier states that in high pressure and low temperature we get a good yield as reaction goes in forward direction and for endothermic it is vice versa

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Mahima Pattanayak 4 years, 5 months ago

Le Chatelier's principle, also called Chatelier's principle, is a principle of chemistry used to predict the effect of a change in conditions on chemical equilibria.

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Diksha Garg 4 years, 5 months ago

If we change the temperature and pressure of the reaction then it will change the direction of reaction. Or the reaction will shift in opposite direction.

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Why molar conductivity decreases with increase in concentration?

Posted by Deeksha Jain 4 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Bijaya Sahoo 4 years, 5 months ago

No answe

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Mahima Pattanayak 4 years, 5 months ago

Molar conductivity increases with a decrease in concentration. This happens because the total volume, V, of the solution containing one mole of electrolyte also increases. Upon dilution, the concentration decreases. Variation of molar conductivity with concentration is different for both, strong and weak electrolytes.

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Agueous solutions &non agueous solutions description?

Posted by Rajneesh Khandelwal 4 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Rajneesh Khandelwal 4 years, 4 months ago

Thank you?

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Mahima Pattanayak 4 years, 5 months ago

I think it's aqueous and non aqueous solution. Therefore answer will be:- An aqueous solution is a solution in which water is the solvent. A NaCl solution is an aqueous solution. A non-aqueous solution is a solution in which water is not the solvent. Examples of non-aqueous solutions are solutions used in dry cleaning (a solution of ethene in the solvent dichloromethane).

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Chemistry practical portion?

Posted by Rajneesh Khandelwal 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Preeti Yadav 4 years, 4 months ago

what is the chemistry practical syllabus

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KH for N2 is 1×10^-5 atm at 298 k. The mole fraction of N2 in air is 0.8. The number of moles of N2 from air that dissolves in 10 moles water at 298 k and 5 atm pressure are.... My challenge those who will answer this question they are genius Thanks

Posted by Sumit Kumar 4 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Mahima Pattanayak 4 years, 5 months ago

Total pressure is 5 atm. The mole fraction of nitrogen is 0.8. Hence,the partial pressure of nitrogen=PT×X=0.8×5=4 atm According to Henry's law, P=KX x is the mole fraction K is the henry's law constant P is the pressure in atm. Substitute values in the above expression. X=1×105atm4 atm=4×10−5=10n n=4.0×10−4mol

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Sumit Kumar 4 years, 5 months ago

KH for N2 1×10^5 hai bhai log sorry

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The acidic nature of carboxylic acid is due to

Posted by Joban Preet 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Ravi Arora 4 years, 5 months ago

OH bond polarity H+comes out of it

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How will you form benzene from butanoic acid?

Posted by Arvind Jangid 4 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Ravi Arora 4 years, 5 months ago

aromatic feigned reagent dalke roosenmumd reduction (Zn+Hg) karva do

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If anyone want to know about practical of chem, bio please ask to me ??

Posted by Sanu ? 4 years, 5 months ago

CBSE > Class 12 > Chemistry

4 answers

Sanu ? 4 years, 5 months ago

Hello tanya , chemistry mai organic se questions poonche the or jo chapter kiye unse pooncha tha File wala topic bhi pooncha tha . Or abhi physics ka practical hua nhi hai jab hoga tab mai bata dungi ?

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Tanya ?? 4 years, 5 months ago

Sanu tumse chm m pure syllabus m.se pucha tha...ya fir jo tumne chapter kie the unme se?? Aur physics m bhi batana??

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Sanu ? 4 years, 5 months ago

●File ke topics ko acchi tarah se padh lena bio mai or theory part poonchte hai ●CHEMISTRY mai organic acche se padh lena or name reaction ko bhi learn kar lena ? Isme bhi file wala topic acche se padh lena ●I hope it helps ??? Best of luck all my brothers and sisters ?

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Akhilesh Kumar 4 years, 5 months ago

Yes

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mere organic sahi se ni ho paa rhe hai kya karu uske liye

Posted by Shalini Singh 4 years, 6 months ago

CBSE > Class 12 > Chemistry

4 answers

Ojas Arora 4 years, 5 months ago

Prepare seprate notes of Name reactions and conversions learn them for 10 days daily.after 10 days try to solve questions .then you will see the difference

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Saurabh Kumar 4 years, 5 months ago

Learn and focus

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Mohit Patil 4 years, 5 months ago

First u read organic chapter class 11th... ?

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Priyanshu Raj 4 years, 6 months ago

just go through the ncert and focus on the compound which has been given in ncert /later go through the errorless your concept will get clear

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type close packing

Posted by Shudhanshu Verma 4 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Vishali Jain 4 years, 5 months ago

3 types of close packing 1. Close packing in 1-D 2. close packing in 2-D 3. Close packing in 3-D

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The vapour pressure of pure liquids A and B are 450 and 700 hg respectively at 350k find out the composition of the liquid mixture if total vapour ppressure is 600mmhg. Also find the composition of the vapour phase

Posted by Kajal Yadav 4 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Sumit Kumar 4 years, 5 months ago

0.30 and 0.70

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Name the heaviest metal in universe

Posted by Shanu Rai 4 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Mahima Pattanayak 4 years, 6 months ago

Osmium is the heaviest metal in universe

3Thank You

Vivek Sahu 4 years, 6 months ago

Loha

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Yaar mere se organic chemistry nhi ho rhi h.....koi yrr help kro na kaise kru....aur conversions m to pta hi nhj chalta ki inka aage kru kya.....plz help me yrr???

Posted by Tanya ?? 4 years, 6 months ago

CBSE > Class 12 > Chemistry

5 answers

Vivek Sahu 4 years, 6 months ago

Asan h Relate.karke pdho jaise Mars me yadi koi kheti karega to use organic chemistry ki jarurat hogi Waise tujhe kya jarurat h usi ko relate kar hamesha ke liye yad ho jayega

1Thank You

Rohan Kumar 4 years, 6 months ago

Tum ek reaction ko ek bar padho do bar tabhi likh lo Phir aglr din use ek bar likh lo Pura organic print ho jayega apke dimag me ( first know the basics than enter to the hard)

1Thank You

Vivek Chaurasia 4 years, 6 months ago

Tanya jii aap sirf naming reaction pa jada focus kro jsa sandmayer, wurtz reation etc.. Esma sa jada question aata ha.. Orr baar baar raatoo?.. Sorry conversion mughe vii nii aata ha??.. Mai suggest krunga jo vi chap padho uska pehle oneshot video dekh lo ussa aapko bhut idea milaga kii question kaha sa jaada aata ha uspa focus kro ho jaayega?

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Sanu ? 4 years, 6 months ago

??best of luck ?

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Sanu ? 4 years, 6 months ago

Hi Baar baar practice karo conversion ki or acche se samajh lo Ncert padho dhang se or samjho ???? Jyada tention mat lo ?

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Ideas for Investigatory project on determination of caffeine in tea samples

Posted by Krishna Rajani 4 years, 6 months ago

CBSE > Class 12 > Chemistry