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What is stalk notation?

Posted by Vansh Garg 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Rrlation between kp and kc

Posted by Sonu Pal 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Gaming Of Nayan 6 years, 1 month ago

Kp = kc × (RT)^delta n

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how can I easily study equilibrium

Posted by Harit ?️?️?️ 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Derive relation between ka and kb

Posted by Varun Kumar 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Fun with magnets

Posted by Neelam Sharma 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Water gas

Posted by Pankaj Kumar 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Anish Physics 6 years, 1 month ago

Mixture of co and h2

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Which will have maximum and minimum negative electron gain enthalpy among P, S, cl and F

Posted by Sadik Ali 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Sir can you please send me list of important questions of ncert according to the chapters

Posted by Rajesh Rajput 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is ionisation energy and why ionisation energy of Nitrogen is greater than hydrogen?

Posted by Harshit Singh 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Harit ?️?️?️ 6 years, 1 month ago

ionisation energy is the amount of energy required for removing electrons from the valence shell of an atom. Now the ionisation energy of hydrogen is higher than nitrogen because hydrogen is very small in size than nitrogen and it has only one electron in it's valence shell due to which the attractive force in hydrogen is higher than that of nitrogen due to which hydrogen can't loose it's electrons easily and take a large amount of energy to loose the electron.

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Rajesh Rajput 6 years, 1 month ago

Sir can you send me a list of important questions of ncert according to the chapters

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Arrange in increasing order of metallic character ( K , Na , Mg , Ca , Cs , Al )

Posted by Kirtika Mayee 6 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Harit ?️?️?️ 6 years, 1 month ago

Al, Mg, Na, K, Ca, Cs

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Akshay Kashyap 6 years, 1 month ago

Na, k, cs, mg, ca,al

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Priyanshu Sagar 6 years, 1 month ago

K, na, ca, mg, Al, cs

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Important question for chapter 4

Posted by Shivam Singh 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Anish Physics 6 years, 1 month ago

Hybridisation

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Amit Kushwaha 6 years, 1 month ago

BF3 structure

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Hello k

Posted by Praveen Kumar 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Amit Kushwaha 6 years, 1 month ago

Bhai ye kya h

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Aadya Singh 6 years, 1 month ago

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What is atomic orbitals

Posted by Kapil Rawat 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Anish Physics 6 years, 1 month ago

Atomic orbitals are the outer bounderies of atoms in which the elecrons revolve according to electronic configration

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Calculate equilibrium constant for nh3

Posted by Sumit Singh 6 years, 1 month ago

CBSE > Class 11 > Chemistry

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Explain wurtz reaction

Posted by Keshav Bhagat 6 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Priya Parjapati 6 years, 1 month ago

Reaction of alkyl halide with sodium in dry ether, useful only for the preparation of symmetrical alkanes..

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Anish Physics 6 years, 1 month ago

Wurtz reaction is used to produce higher alkanes

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Dhimoleji Presentation 6 years, 1 month ago

When alkyl halides react with sodium metal to give higher alkane this reaction is known as wurtz reaction.

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5 marks important questions from environmental chemistry

Posted by Abir Sarkar 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Ritika Singh 6 years, 1 month ago

How is photochemical smog fromed

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Anish Physics 6 years, 1 month ago

Pollution control

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What is isolated system?

Posted by Gautam Sharma 6 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Tiyasha . 6 years, 1 month ago

The system which does not affect its surrounding and not affected by its surrounding is called isolated system

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Sunil Kumar 6 years, 1 month ago

Not next its net

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Yogita Ingle 6 years, 1 month ago

Isolated System: - In this system there is neither change in matter nor change in energy. For example: - Any closed insulated vessel like thermos flask. In thermos tea can be kept hot for many hours because the walls of thermos are insulated and it does not allow heat to flow out of the flask.

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Raj Vardhan 6 years, 1 month ago

Isolated system is a system on which next force is zero

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What is the wieghtage of chapter- enivironmental chemistry in final exams?

Posted by Rhea Sharma 6 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Anish Physics 6 years, 1 month ago

3 marks

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Abir Sarkar 6 years, 1 month ago

Sorry it 's 3 marks

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Abir Sarkar 6 years, 1 month ago

5 questions -7 marks

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Diksha Singh 6 years, 1 month ago

3 marks

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Why the first ionisation is more than that of second

Posted by Vibha Sharma 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Rishabh Verma 6 years, 1 month ago

2nd ionisation energy is more than 1st ionisation energy

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Difference between molecular formula and empirical formula

Posted by Rakesh Roy 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Rhea Sharma 6 years, 1 month ago

Empirical formula is the simplest ratio of all the atoms in a molecule by number while molecular formula reptesents actual number of atoms in a compound.

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H2O can act as acid as well as base

Posted by Sumit Verma 6 years, 1 month ago

CBSE > Class 11 > Chemistry

4 answers

Geeta Malhotra 6 years, 1 month ago

due to self ionisation of water molecules.

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Anish Physics 6 years, 1 month ago

It has ability to work as acidic and basic

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Rhea Sharma 6 years, 1 month ago

Yes,because H2O ionises to give H+ and OH- ions. Hence it has the ability to gain and donate H+ ions. Therefore it behaves as both acid and base

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Sumit Verma 6 years, 1 month ago

I don't know

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What is the hybridization state of each carbon atom in the benzene and also calculate no. Of sigma and pi bond in benzey

Posted by Moin Ali 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Rhea Sharma 6 years, 1 month ago

Each carbon in benzene is sp2 hybridised. There are 12 sigma and 3 pi bonds.

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Amit Bhanwala 6 years, 1 month ago

Ffedfggvcf

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What's functional group

Posted by Batini Harisankar 6 years, 1 month ago

CBSE > Class 11 > Chemistry

3 answers

Anish Physics 6 years, 1 month ago

Functional groups are the groups attached to carbon compounds such as ch3cooh

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Diksha Singh 6 years, 1 month ago

Atoms or a group of atoms which largely determines the chemical properties of organic compounds

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Akash Sharma 6 years, 1 month ago

Its a good thing ?

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Why co2 is a gas and sio2 is a solid?

Posted by Kumkum Agrahari 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Anish Physics 6 years, 1 month ago

Co2 is a simple molecular structure and has double bond that's why it exists in gaseous state

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Which has higher mass 1) 5 mole of CO2 2) 224ml O2 gas at STP

Posted by Manam Khan 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Rhea Sharma 6 years, 1 month ago

5 mol co2

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Pie bond

Posted by Thakur Anubhav Singh Chauhan 6 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Anish Physics 6 years, 1 month ago

Double or triple bond

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Adithya Adi 6 years, 1 month ago

Weak bond ☺️

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What happened when one Sodium Peroxide dissolves in water second Lithium nitrate is heated third quicklime is heated with silica

Posted by Rishika Lalwani 6 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Harmanpreet Kaur 6 years, 1 month ago

When sodium peroxide is dissolved in water it will give hydrogen peroxide NA2O2+H2O->NAOH+H2O2 When lithium nitrate is heated 4LiNO3+heat->2Li2O+4NO2+O2 When CaO is heated with silica it gives calcium silicate. CaO+SiO2->CaSiO3

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How can we describe periodic table

Posted by Ayisha Shaikh 6 years, 1 month ago

CBSE > Class 11 > Chemistry