Incorrect URL accessed!!!!

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DT sahcsifzri CD tu ctek vs yocgkftocu

Posted by Deepak Chaudhary 1 year, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Posted by Paras Rekwal 1 year, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

In partical extarnal mainly which type questions ask

Posted by Ashu Goswami 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Aadyasha Giri 1 year, 9 months ago

Basically they will ask you questions from the project file that has been prepared by you... they will start questioning from that only further they will start asking for the topics from the chapter related to the project.

Akansha Rana 1 year, 10 months ago

From your books and project file by you . If he/she call in you group you know other one topic also And some question from lab manual that's it

ANSWER

Practical question

Posted by Hammad Shams 1 year, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Akhya Sahay 1 year, 9 months ago

Search on Youtube

Hishant Varshney 1 year, 10 months ago

Check in lab manual

Nrapendra Singh Kundoliya 1 year, 10 months ago

What is lanthanoid contraction

7Thank You

ANSWER

Find the normality of a 250ml solution formed by 9.8 g of barium hydroxide

Posted by Samiksha Shahi 1 year, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjan Karthi 1 year, 10 months ago

Molarity = W 2 × 1000 / M 2 × V = 9.8 × 1000 / (137 + 17 + 17) × 250 = 9.8 × 4 / 171 = 39.2 / 171 = 0.23 M. // Therefore, normality = Molarity × n-factor = 0.23 × 2 = 0.46 N. //

ANSWER

Metallurgy notes

Posted by Priya Priya 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Yashveer Sharma 1 year, 9 months ago

Harshit Mishra 1 year, 9 months ago

Hii priya

4Thank You

ANSWER

What is d^3s hybridization

Posted by Namanjot Singh 1 year, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Akk Mii 1 year, 10 months ago

are u taking about d2sp3?

ANSWER

What is nearst equation

Posted by Ashutosh Choubey 1 year, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Gurchetan Singh 1 year, 10 months ago

This equation defines the relation between the concentrations of an ion on either side of a membrane that it perfectly selective for that ion and the potential difference (voltage) that will be measured across that membrane under equilibrium conditions.

Urvashi Kalia 1 year, 10 months ago

E=E*cell-0.059/n log (anode pdt)/(cathode pdt)

Soumya Srivastava 1 year, 10 months ago

What is a solution

ANSWER

why is cryolite added in the electrolysis of alumina?

Posted by Shubham Kumar 1 year, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Preeti Dabral 1 year, 10 months ago

Cryolite is added to alumina as to lower the fusion temperature and make the mass good conductor of electricity.

ANSWER

structure of compound Di-sec. butyl ketone

Posted by Tanishka Sharma 1 year, 9 months ago

CBSE > Class 12 > Chemistry

4 answers

Tanishka Sharma 1 year, 10 months ago

I don't know in which school you study

Yash Maheshwari 1 year, 10 months ago

Copy this link and you will get the structure in he form of image https://uploadnow.io/f/70w8G8n

Yash Maheshwari 1 year, 10 months ago

MJ170403 10 9 0 0 0 0 0 0 0 0999 V2000 -1.3272 0.5022 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.3158 1.3645 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.3272 -0.3227 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.1522 0.5022 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.3514 -0.3770 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.3891 1.5044 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.1292 0.5136 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.5022 0.5022 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.5361 1.4678 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 0.3785 0.5022 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 1 3 1 0 0 0 0 1 4 1 0 0 0 0 1 8 1 0 0 0 0 10 5 1 0 0 0 0 10 6 1 0 0 0 0 10 7 1 0 0 0 0 8 10 1 0 0 0 0 8 9 2 0 0 0 0 M END

Prashant Sher Yadavanshi 1 year, 10 months ago

Tanishaka Sharma ap mere school may padhti ho kya

4Thank You

ANSWER

If a chain of 4 single bonded Carbon is there , and from left to right on 2nd position there is 1 Bromine and at 3rd position there are 2 methyl groups . So from where will be the correct numbering given to Carbon

Posted by Prateek Verma 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Anjan Karthi 1 year, 9 months ago

From right to left. So, the name would be 3-bromo-2,2-dimethyl butane.

Tanishka Sharma 1 year, 10 months ago

1-Bromine, 3,3-dimethylbutyraldehyde

ANSWER

Sample paper o1 CBSE guide line ka

Posted by Sandhya Rajput 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Prashant Sher Yadavanshi 1 year, 10 months ago

Mujhe pat hay

Mukta Joshi 1 year, 10 months ago

Don't know

ANSWER

Explain physical significance of (psi)2

Posted by Shailesh Vats 1 year, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Difference between Electrolytic conductance and Electronic conductance

Posted by R.Sasi Kumar 1 year, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjan Karthi 1 year, 10 months ago

Electrolytic conductance is caused by the mobility of IONS in their AQUEOUS electrolytic solutions. But, electronic conductance is caused by the mobility of ELECTRONS within the lattices of METALS or other similar ELECTRONIC CONDUCTORS (like graphite).

ANSWER

Formic acid is stronger than acetic acid.

Posted by Shubham Kumar 1 year, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjan Karthi 1 year, 10 months ago

The main reason for stability of carboxylate anion formed by acidic property of carboxylic acids is resonance. But, even under such stability there does exist a possibility that the carboxylic carbon have some residual deficit of negative charge (not actually positive charge) , and this may be caused by the +I effect of alkyl groups connected to the carbon. But, since formic acid has no alkyl group connected to the acid group, it is the stronger than acetic acid.

ANSWER

What is amino acid

Posted by Ajitha Kumari 1 year, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Ashutosh Mishra 1 year, 10 months ago

Hitanshu Mathur 1 year, 10 months ago

Hello

Anjan Karthi 1 year, 10 months ago

Chemically, an amino acid is a substituted methane molecule wherein three of the hydrogens around the central carbon are replaced by an amino group, an acid group and an alkyl group. Whether an amino acid is actually acidic, basic or neutral depends on the alkyl group. If the alkyl group has an amino substituent branch, the amino acid is basic, if the group has a - COOH substituent, the amino acid is acidic and if it has no other functional group, the amino acid is neutral. These amino acids undergo polymerisation to form heteropolymers known as proteins.

Sakshi Gupta 1 year, 10 months ago

Protein

ANSWER

What are alcohols and phenols?

Posted by Ayushi Dasar 1 year, 11 months ago

CBSE > Class 12 > Chemistry

5 answers

Tanishka Sharma 1 year, 10 months ago

Alcohol which have OH group present and it has simple chain like structure and Phenols which have OH group in benzene

Nidhi Kumari 1 year, 10 months ago

OH group directly attach to the benzen ring known as phenol

Nidhi Kumari 1 year, 10 months ago

Alcohol which have OH group present and it has simple chain like structure

Alok Mittal 1 year, 10 months ago

Alcohols which have OH group in simple chain like structure And Phenols which have OH group in benzene

Yashi Kushwaha 1 year, 10 months ago

Alcohol has -OH GRP while phenols are benzene ring + -OH GROUP AT PARA POSITION

ANSWER

What is amines

Posted by Brijesh Singh 1 year, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Preeti Dabral 1 year, 11 months ago

Amines are the derivative of amonia in which one two three replaced hydrogen of alkyl or aryl group

ANSWER

Separation of pigment

Posted by Musharraf Murtaja 1 year, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjan Karthi 1 year, 11 months ago

Using ascending paper chromatography

ANSWER

Distinguish between reducing sugar and non reducing sugar

Posted by Raj Arya 1 year, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Tarni Jain 1 year, 11 months ago

Reducing sugar are those which can reduce tollen reagent and fehlings solution and non reducing are those which can'nt

Pranav Sharma 1 year, 11 months ago

Reducing sugar is carbohydrates with free aldehyde and ketone grp and can reduce tollen and fehling solution

Sameer Chauhan 1 year, 9 months ago

Reducing sugar are those sugar which reduces fehling's solution and tollen's reagent to metallic silver are called reducing sugar

ANSWER

How will you convert butene to pentanol

Posted by Anuja Shelke 1 year, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Preeti Dabral 1 year, 11 months ago

First apply Hydroboration Oxidation.(B2H6/H2O2 OH-)
Give PCC (Pyridinium chlorochromate)
Now Give Grignard reagent(CH3MgBr), and then hydrolize(H3O+)
Now use t-BuO-K+ for a Hoffmann Elimination.
Now again Hydroboration oxidation.

You get the required product.

Anjan Karthi 1 year, 11 months ago

OR, we can do the conversion as follows too :- a) Anti Markovnikov addition of HBr. b) Nucleophilic substitution by KCN (we get butane nitrile). c) DIBAL-H addition to get pentanal from butane nitrile. d) Reduction to pentanol by LiAlH4

ANSWER

What is the concept of low oxidation state

Posted by Arnav Mittal 1 year, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Preeti Dabral 1 year, 11 months ago

The low oxidation state chemistry of the seven lightest metallic elements is described, with an emphasis on the introduction of bulky ligands to provide sufficient kinetic stability to allow the synthesis of well-defined compounds, which are isolable under normal conditions of temperature and pressure.

ANSWER

To compare the effectiveness of different emulsifying agents in forming emulsions

Posted by Kiranjit Kaur 1 year, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Preeti Dabral 1 year, 11 months ago

Emulsifying agents act as surfactants that decrease the surface tension between the dispersed phase and the dispersion medium. Emulsifying agents stabilize the emulsion by forming an interfacial film between suspended particles and the medium. hence, stabilize the emulsion by adding the third component. For example, agar is an emulsifying agent used in food.

ANSWER

Reactions for alcohols, phenols, and ethers referencing a scientists

Posted by Pawan Yumnam 1 year, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Rspl question paper 2022

Posted by Sri Sri 1 year, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayan Khan 1 year, 11 months ago

jgdjkkk

ANSWER

How to solve chemical equation balance class 12

Posted by Ananya Kasaudhan 1 year, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Preeti Dabral 1 year, 11 months ago

To make the number of atoms of each element the same on both sides of the equation, multiply coefficients (the numbers in front of the formulas). The hydrogen and oxygen atoms are the easiest to balance last. Check your work by indicating the state of matter of the reactants and products.

Tushar Goswami 1 year, 11 months ago

ANSWER

What is Frieda-Craft reaction ?

Posted by Sristy Singh 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Preeti Dabral 1 year, 11 months ago

Friedel Crafts alkylation reaction can be explained as the alkylation of an aromatic ring using an alkyl halide in presence of a strong Lewis acid which acts as a catalyst. In the following given reaction, AlCl₃ is used as a catalyst and the aromatic ring taken is benzene.

Alok Mittal 1 year, 10 months ago

R-X + AgF ===> RF + AgX

ANSWER

V3+,Cr2+, Cu+, Fe3+ Identify the ion which is a strong reducing agent in aqueous solution Give suitable reason

Posted by Shrishti Yadav 1 year, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Anjan Karthi 1 year, 11 months ago

It is Cr2+ (I AM SORRY, THE FIRST ANSWER I GAVE WAS WRONG.) When Cr 2+ gets oxidised, it becomes Cr 3+ which has a relatively more stable electronic configuration in complexes (3d3 ~ t2g3). So, it undergoes easy oxidation. So it can easily give away electrons and thus, is a strong reducing agent.

Anjan Karthi 1 year, 11 months ago

Fe3+