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Is compartment exam is toughest than board

Posted by Abhishek Kumar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Devraj Pahariya 7 years, 6 months ago

Yes , but not too much

ANSWER

Salt is used ti melt ice as well as to kept it freeze. How?

Posted by Riya Sharma 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

I think salt is not used for melting ice It is use only to keep it freeze

ANSWER

Reverse osmosis notes

Posted by Raghvendra Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Suryansh Jain 7 years, 6 months ago

Read through Chemistry ncert pg 55 part 1 topic no. 2.6.5

ANSWER

p block elements important questions plz

Posted by Manjushree Hiremat 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Volume of solution is 10^4 ml and weight of soluble is 10^ -4 what is value of ppm ? How much water should be added if the quantity of ppm is to be halved?

Posted by Mantasa Kasmani 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Project on battery and its types

Posted by Tushar Verma 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Define Nitrocellulose

Posted by Princesses Kaur 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Princesses Kaur 7 years, 6 months ago

Nitrocellulose is highly flammable substance made by cellulose with constrate nitric acid

Princesses Kaur 7 years, 6 months ago

Chapter surface chemistry

ANSWER

What is DDT

Posted by Sagar Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Àñshul Shärmã 7 years, 6 months ago

DDT is a synthetic organic compound used an insecticide .it stands for dichlorodiphenyltrichloroethane

Princesses Kaur 7 years, 6 months ago

From which chapter?

ANSWER

The electrical resistance of column of 0.05m NaOH solution of diameter 1cm and length 50cm is 5550 . calculate conductivity

Posted by Rizwan Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is the formula of corundum?

Posted by Rajeshwari Kumari 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Shyam Gupta 7 years, 6 months ago

Al2O3

Sandeep Singh 7 years, 6 months ago

F=qv×b

ANSWER

What is the chemistry

Posted by Pritesh Shinde 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shyam Gupta 7 years, 6 months ago

Chemistry is a deal with the study of properties of matters and structures

ANSWER

What is the coordination number of bcc and fcc unit cell

Posted by Rajeshwari Kumari 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Saloni S 7 years, 6 months ago

fcc =12 coordination no bcc=8 coordination no

ANSWER

45gm of ethylene glycol is mixed with 600gm of water. Calculate - freezing point of. Solution where Kf =1.86k kg/mol for water

Posted by Hariom Shukla 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is slag

Posted by Arya Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

In stoichiometric defect nacl exhibits schottky defect and not frenkel defect

Posted by Prabhakar Ranjan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How many atom present no bcc unit cell

Posted by Amritpal Singh Amrit 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Prince Jangra 7 years, 6 months ago

2

Deepika Sharma 7 years, 6 months ago

2

ANSWER

Why is osmotic pressure of1M kcl higher than 1m urea solution

Posted by Vivek Anand 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

E° cu2+|cu = 0.34v ,ph =14 , ksp of cu(oh)2 = 10 to the power -19 calcute e cell

Posted by Manjil Parashar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Pulkit Chandra 7 years, 6 months ago

Ecell=E°cell-0.0891÷n log[anode]÷[cathode] n= no. of electron used during reaction E°cell=E°cathode-E°anode

ANSWER

How to prepare chemistry for compartment exam 2018 class 12 cbse

Posted by Tushar Sanvi 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Singh 7 years, 6 months ago

You can join coaching institute for a month to study some specific chapter

ANSWER

Which reactio distinguish between aniline and N-methyaniline

Posted by Yatendrasinh Jadeja 4 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 4 years, 6 months ago

Can be distinguished by isocyanide test aniline gives offensive small of isocyanides while methyl aniline does not give this test

C₆H₅NH₂+CHCl₃+KOH⟶C₆H₅NC+3KCl+3H₂O

ANSWER

Difference between Ecell & E°cell

Posted by Pulkit Chandra 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Sweta Gautam 7 years, 6 months ago

The potential difference between the electrode and the electrolyte is called Ecell . AND. When the concentration of all the species involved in a half cell is unity, the Ecell is known as E°cell.

ANSWER

What are SN reactions? Of how many types are they.

Posted by Mohit Kiroula 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Can you gave me all the formulas related to solution chapter

Posted by Abhishek Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Pulkit Chandra 7 years, 6 months ago

No

ANSWER

How can express the rate of following reaction in terms of concentration of reactants and products 1. 2O3 gives 3O2 2.2No+Br2 gives 2NoBr 3.2ICL+H2 gives I2+2HCl

Posted by Anjali Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why florine has lowers dipole moment than chlorine?

Posted by Khushi Khatri 7 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Debdip Hazra 7 years, 7 months ago

Due to small size--more e-s density in fluori ne

ANSWER

How to convert alkane to alkyen

Posted by Deoraj Kumar 7 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Manan Bedi 7 years, 7 months ago

By dehydrogenation of alkane ,alkene will be formed. Dehydrogenation of alkene gives alkyne.

ANSWER

Group 14 and 13 elements combine to from which type of conductor

Posted by Arnav Singh 7 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Saloni S 7 years, 6 months ago

p type semiconductor

ANSWER

Group 13 and 14 elements combine to from which type of conductor

Posted by Arnav Singh 7 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why molecularity is not meant for complex reactions?

Posted by Vikas Singla 7 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Sahu 7 years, 6 months ago

It is defined for individual steps . Not for the whole reaction in particular . Perhaps complex reactions have many steps , each having different molecularity so net molecularity of reaction cannot be defined.

ANSWER

A Hexagonal close structure have both Tetrahedral(2n) and Octahedral(n) voids

Posted by Lakshay Vashishtha 7 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

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