Incorrect URL accessed!!!!

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Is mechanism is asked in cbse ???

Posted by Shruti Kamal 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Ravi Sinhmar 6 years, 3 months ago

Yes

Greeshma Suresh 6 years, 3 months ago

Most probably

ANSWER

What is linear molecules? Which of the following is linear molecules no2 co2 so2 so3

Posted by Alisha **** 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 6 years, 3 months ago

CO₂is linear because carbon is sp-hybridised. CO2 is linear because carbon is sp-hybridised.

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Is preboards marks matters?

Posted by Deepanshu Kaushik 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Shruti Kamal 6 years, 3 months ago

Khuskaran Sidhu 6 years, 3 months ago

But the revision of ur syllabus u do during pre-boards matters ?

ANSWER

When is chemistry compartment board exam 2020

Posted by Sayanipa Ghosh 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Sayanipa Ghosh 6 years, 3 months ago

I will not have to give my compartment exam

Shruti Kamal 6 years, 3 months ago

Are you wondering that u appear in compartment , overall 3 months are left u can do much better in chemistry in these month,and there is no need to be appear in compartment

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How can explain mechanism of halogenation

Posted by Parjapati Alok 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Sumit Sharma 6 years, 3 months ago

Adding halogen and showing the electron leaving the 1 compound to other

ANSWER

How can we learn reactions from organic chemistry, plz help me

Posted by Laxmi Sharma 6 years, 3 months ago

CBSE > Class 12 > Chemistry

6 answers

Laxmi Sharma 6 years, 3 months ago

Thanku everyone for your suggestion ??

Ravi Sinhmar 6 years, 3 months ago

You can learn rxn by writing practice only

Rahul Sharma 6 years, 3 months ago

Make a chart of naming formula and past on front of you

..... ... 6 years, 3 months ago

Hlo

Mounish Varma 6 years, 3 months ago

Practice can make u perfect

..... ... 6 years, 3 months ago

First u learn important rxns.. Then mechanism U learn in different parts

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Equal amount of ethanol and water are mixed. Why would they show positive deviation?

Posted by Siddharth Acharya 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

..... ... 6 years, 3 months ago

Hii

..... ... 6 years, 3 months ago

ANSWER

What is the no. Of atoms per unit cell in a body centered cubic structUre

Posted by Ashish Rai 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Prafful Agrawal 6 years, 3 months ago

Dear.. Cbse has removed solid state chapter this year..

..... ... 6 years, 3 months ago

???

ANSWER

m-amino phenol is a stronger acid than o-amino phenol. Give reason.

Posted by Vishakha Dhiman 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhimanyu Kaul 6 years, 3 months ago

First draw the resonance structure of both . As we know that is resonance the negative charges goes to the alternate C atoms....so in case of o-amino phenol the NH2 shows +R effect and gives its electrons to the ring and the -ve charges goes to the C atom attached to OH grp and therefore electrons move to OH grp, it increases electron density on OH grp and therefore it is difficult to release H+ ion and hence less acidic While in case of m-amino phenol the the NH2 shows +R and in this case the electrons will not go to the C atom attached to OH grp ...else it will go to the next C atom ( as alternate C atoms will get -ve charge) ...and therefore electron density will not increase on OH grp and it will be easy to release H ion and hence more acidic I also had the same doubt before and i hope you got your doubt solved!

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What is Canizzaro reaction ?

Posted by Yash Jangid 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 6 years, 3 months ago

Cannizzaro reaction: Aldehydes having no α-hydrogen atoms undergo self oxidation and reduction (disproportionation) reactions on treatment with a concentrated alkali. In such reactions, one molecule of aldehyde gets oxidised to form an acid and the other molecule of aldehyde gets reduced to form an alcohol.

For example, two molecules of formaldehyde, in the presence of concentrated NaOH, produce methanol and sodium formate.

6Thank You

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Smpel pepr ans

Posted by Adi Max922 6 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

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What is the shape of dibenzal acetone crystals And shape of benzene azo 2 napthol

Posted by Akshat Mittal 6 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

In 1 weak how to complete chemistry hole syllabus in class 12 board

Posted by Sumit Chandravanshi 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Dev Arora 6 years, 3 months ago

Do ncert back excersice

5Thank You

ANSWER

Free radical mechanism,polymers m aa rha h ya nhi?

Posted by Sunmeet Kaur Sachdeva 6 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Gurman Kaur 6 years, 3 months ago

Aa rha h

Deeya Singh 6 years, 3 months ago

Aa raha hai

Leo Arockiasamy 6 years, 3 months ago

Rha

ANSWER

Any example of globular protein????

Posted by Amol Gùpta 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Amol Gùpta 6 years, 3 months ago

Thanks

Yuvraj Singh 6 years, 3 months ago

Hemoglobin , amylase , insulin

4Thank You

ANSWER

What is the molar concentration of solute particles in the human blood if the osmotic pressure is 7.2atm at normal body temperature i.e. 37degree

Posted by Saloni Sahu 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 6 years, 3 months ago

<div>Л = CRT
or C = Л/RT
Л = 7.2 atm
R = 0.0821 L atm K-1 mol-1
T = 37°C = 37 + 273 = 310 K.
Molar concentration (C) = (7.2 atm)/(0.082L Latm K-1mol-1 ) x (310 K)
= 0.283 mol-1
= 0.283 M. Read more on Sarthaks.com - https://www.sarthaks.com/240928/molar-concentration-solute-particles-human-blood-osmotic-pressure-normal-temperature</div>

ANSWER

Hess's law constant heat summation :

Posted by Dasarathi Kanhar 6 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

number of chiral carbon atoms in 1molecule of glucose

Posted by Poonam Hasija 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Deeya Singh 6 years, 3 months ago

It's 4

Priyanshu Verma 6 years, 3 months ago

5 hote h sayad yrr

ANSWER

cbse chem blueprint chapterwise and typology based for 2020 exam of chemistry

Posted by Sunita Lal Jangir 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Alisha Jajodia 6 years, 3 months ago

I also want

ANSWER

Different oxidation state shown by lanthanoids

Posted by Rachna Ajay 6 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Yogita Ingle 6 years, 3 months ago

Oxidation States of lanthanoids

The elements belonging to lanthanide series exhibit an oxidation state of +3. For example, Praseodymium (Pr) shows +3 oxidation state.
Some elements exhibit +2 oxidation states in their complexes in solutions. For example, Samarium (Sm), Europium (Eu), Thulium (Tm) and Ytterbium (Yb) show +2 oxidation state.
Some elements exhibit +4 oxidation states due to high stability of empty, half-filled or fully filled f-subshells.
Praseodymium (Pr), Neodymium (Nd), Terbium (Tb) and Dysprosium (Dy) exhibits +4 oxidation state in their oxides.
Cerium (Ce) shows both +3 as well as +4 state.

Akshat Nautiyal 6 years, 3 months ago

+2,+3

ANSWER

What is the difference between tollen's reagent and fehling's solution ?

Posted by Sohan .G 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Parth Gupta 6 years, 3 months ago

Tollens react with aldehyde but doesnt react with ketpne

7Thank You

ANSWER

About oxidation state

Posted by Jyotishman Boruah 6 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Anupam Chaurasiya 6 years, 3 months ago

Charge present on any atom, molecule or ion. Ex. Oxidation state of Cu is 0, Cu^2+ is +2, Cl^1- is -1 and [Ag(NH3)2]^+ is+1 The oxi state of any atom in its elementary state is always zero (Cu→0)