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P-block ka konsa group nahi ayega.

Posted by Subham Sahu 5 years, 10 months ago

CBSE > Class 12 > Chemistry

5 answers

Tushar Bhola 5 years, 10 months ago

15 grp nitrogen family (nicogens)

Anushree Agarwal 5 years, 10 months ago

15th grp

Shashank Pandey 5 years, 10 months ago

Nitrogen family 15th

Gopal Mishra 5 years, 10 months ago

15th group

Sanjana Sharma 5 years, 10 months ago

15

ANSWER

What type of intermolecular attractive interaction exists in pair of methanol and acetone

Posted by Nakshathara Suresh 5 years, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Tushar Bhola 5 years, 10 months ago

Stronger h-bonding in methanol

Karan Sharma 5 years, 10 months ago

Dipole dipole

Pankaj Singh 5 years, 10 months ago

Hydrogen bonding

Shashank Pandey 5 years, 10 months ago

Hydrogen bond

ANSWER

What is mole concept

Posted by Shrishti Vishwakarma 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Yogita Ingle 5 years, 10 months ago

The mole concept is a convenient method of expressing the amount of a substance. Any measurement can be broken down into two parts – the numerical magnitude and the units that the magnitude is expressed in. For example, when the mass of a ball is measured to be 2 kilograms, the magnitude is ‘2’ and the unit is ‘kilogram’.

Tamanna Sharma 5 years, 10 months ago

Amount of substance contains no. Of atoms ,molecule .( given mass of substance/ molar mass of substance)

ANSWER

What is anomeric carbon?

Posted by Muskaan Vig 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamanna Sharma 5 years, 10 months ago

The carbon at which geometric variation occurs.

ANSWER

What is the role of temperature in conversion of SO2 to H2SO4?

Posted by Manjay Jha 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Manjay Jha 5 years, 10 months ago

Thanks Saqib!

Saqib Khan 5 years, 10 months ago

Conversion of SO2 to H2SO4 is an exothermic process so temperature should be low for more product

ANSWER

In which chapter 5 marks questions came in paper

Posted by Subham Raj 5 years, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Tushar Bhola 5 years, 10 months ago

??

Tushar Bhola 5 years, 10 months ago

Hasan bhai tune hi paper design kiya hai na

Subham Raj 5 years, 10 months ago

Ya... Thanku brother

Hasan Azam 5 years, 10 months ago

Its generally from p block,d block,aldehyde ketome carboxylic,chemical kinetics,solution But no one knows the plans of cbse board.

ANSWER

What is the marks distribution for every chapters in chemistry

Posted by Aman Ojha 5 years, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

formation of buna N

Posted by Naina20 Tiwari 5 years, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Naina20 Tiwari 5 years, 10 months ago

Thank you

Tushar Bhola 5 years, 10 months ago

By codensation polymerization of buta-1,3-diene and polyacrylonitrile

Rajat Barwar 5 years, 10 months ago

By polymerisation of 1,3-buta-diene and acrylonitrile.

ANSWER

How to practice for chemistry questions comes in test

Posted by Saransh Gupta 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayush Kukreti 5 years, 10 months ago

Hy

ANSWER

Write the mechanism of preparation of diethyl from ether

Posted by Apoorva Rao 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Karan Sharma 5 years, 10 months ago

By Williamson synsthesis

ANSWER

Should I need to write all the reactions in Questions like, identify the structure of the compound???

Posted by Tapan Pandey?? 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Killer Xmarty 5 years, 10 months ago

Yesss

ANSWER

How to convert but-1-yne to but-2-yne?????

Posted by Parambir Kaur 5 years, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Give the example of first order reaction

Posted by Aniket Kumar Saw 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Pankaj Singh 5 years, 10 months ago

Ester hydrolysis

Nikita Beniwal 5 years, 10 months ago

Radioactive decay

ANSWER

Acids are_____________ directing.

Posted by Tapan Pandey?? 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Nikita Beniwal 5 years, 10 months ago

Meta

ANSWER

Aldehydes, ketones are ___________directing.

Posted by Tapan Pandey?? 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Nikita Beniwal 5 years, 10 months ago

Meta

ANSWER

Define proportionality constant Kf.

Posted by Garima Kumari 5 years, 10 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What will the difficulty level of board exam will it difficult from sample papers or easy from it

Posted by Nitish Kathuria 5 years, 10 months ago

CBSE > Class 12 > Chemistry

4 answers

Hasan Azam 5 years, 10 months ago

As sample paper of this year is of moderate level.As the pattern is changed so the paper should come easy.

Nancy Kansal 5 years, 10 months ago

I really hope it to be easy???

Nikita Beniwal 5 years, 10 months ago

From Which sample paper

Riya Rana 5 years, 10 months ago

Easy (hopefully)?...!!

ANSWER

Diazodization reaction ?

Posted by Yashita Agrawal 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Shefu ??????? 5 years, 10 months ago

Also show coupling rxn with 1)phenol+ ph=8-10==parahydroxydiazo 2)aniline +ph=4-6==paraaminodiazo

Shefu ??????? 5 years, 10 months ago

Aniline +HNO2+NaNO2+HCl=diazotization (at room temperature)

ANSWER

Is fischer spiere esterification is in ncert or not?

Posted by Gaurav Rawat 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Anand Raj 5 years, 10 months ago

Only a slight part in biomeolecules But not explained in better way.

ANSWER

Why SO2 is an reducing agent

Posted by Anil Bhati 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Shatayu Ganvir 5 years, 10 months ago

Here its oxidation state is +4 it can go to +6 by so4-2 so it acts as a reducing agent as itself it undergoes oxidation

ANSWER

What is the hybridization of XeF4 ?

Posted by Priya Shyam 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Shatayu Ganvir 5 years, 10 months ago

SP3D2

Harsh Raghuwanshi 5 years, 10 months ago

By hybrid formula 1/2[8+4]=6 =sp3d2

ANSWER

The ratee of particular reaction triples when temp. changes from 50 to 100° C. Calculate the activation energy of the reaction??? Plzzz btaye koi

Posted by Killer Xmarty 5 years, 10 months ago

CBSE > Class 12 > Chemistry

5 answers

Killer Xmarty 5 years, 10 months ago

Muskan temp ko 273 se plus krke kiya hai??? Plzzz tell me

Killer Xmarty 5 years, 10 months ago

Muskan u right thank u so much

Gaurav Seth 5 years, 10 months ago

Gaurav Seth 5 years, 10 months ago

Q : The rate of a reaction triples when temperature changes from 50 to 100° C. Calculate the energy of activation for the reaction.

Solution:

We shall use arrhenius equation

Muskaan Vig 5 years, 10 months ago

Ea=22011.76J per mole is answer...

ANSWER

Bromobenzene to 2-bromoacetophenone

Posted by Aman Singh 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Uday Mann 5 years, 10 months ago

CH3COCl in presence of AlCl3 . Friedel Cradt Acylation

ANSWER

If we r given with a pair of compounds and we have to infentify whether they r positive azeotrops or negative how can we indentify...

Posted by Avantika Tayal 5 years, 10 months ago

CBSE > Class 12 > Chemistry

5 answers

Nikita Beniwal 5 years, 10 months ago

In ncert there is 3 example of + and 4 of - deviation learn them, no question will be out of them

Rajat Barwar 5 years, 10 months ago

Like... Non polar -non polar -- ideal solution. Polar(H bonding)-non polar / nonpolar(H bonding)- nonpolar / both polar with one or both sohow H bobding ------ positive deviation. Acid - base /acid - water / acetone - chloroform ----- negative deviation.... Hope this may help you...

Rajat Barwar 5 years, 10 months ago

You should learn the criteria to determine the nature of deviation.....

▪▪Amrit▪▪ ❤ 5 years, 10 months ago

How????

Uday Mann 5 years, 10 months ago

We will the see the bonding present between them

ANSWER

Can we use hydrometallugy for extrqction of zinc from its low grade ore

Posted by Abhinav Vashistha 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Uday Mann 5 years, 10 months ago

Na

Avantika Tayal 5 years, 10 months ago

By mac arthur forest cyanide process..may be

ANSWER

Chemistry conversions will come from book only ya fir bahar se bhi aa sakta hai????

Posted by Ankita Verma 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Hasan Azam 5 years, 10 months ago

Ncert is our lord for cbse exams??

Uday Mann 5 years, 10 months ago

Book se hi aaega pura paper . Koi b bahar se nahi aaegi chemistry mei toh ?%

ANSWER

Out of propanal and propanone which reacts faster with HCN

Posted by Bavdeep Verma 5 years, 10 months ago

CBSE > Class 12 > Chemistry

1 answers

Avantika Tayal 5 years, 10 months ago

Sinnce it a nueclophile involving reaction so aldehydes will react faster as it has only 1 edg but ketone has 2 edg.ketone willake the cacbon of functio al grp more negative as compared to aldehyfe.in other words steric hindrebs on ketone is more so more reactive is aldehyde

ANSWER

Write the products obtained after hydtolysis of DNA

Posted by Ankit Pandey 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Uday Mann 5 years, 10 months ago

Ni aaega

Science Class 5 years, 10 months ago

Pentose sugar ,nitrogenous bases like adenine, guanin and phosphate group.

ANSWER

Write one reaction that can be used as a test for primary amines

Posted by Nupur Mohapatra 5 years, 10 months ago

CBSE > Class 12 > Chemistry

2 answers

Rajat Barwar 5 years, 10 months ago

Hinsberg test and of course carbyl amine test

Nikita Beniwal 5 years, 10 months ago

Carbylamine test, isocyanide form with primary amine

ANSWER

How can I revise conversions

Posted by Xyz Abc 5 years, 10 months ago

CBSE > Class 12 > Chemistry

3 answers

Nancy Kansal 5 years, 10 months ago

U have work hard if u want good marks?

Xyz Abc 5 years, 10 months ago

There are many how can i do

Amrit Amrit 5 years, 10 months ago

By writng the reaction

ANSWER

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