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What are the important questions in. S block elements chapter

Posted by Avi Kri 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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Conservation of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2/10000 mol/l solubility of product of Ag2C2O4 is

Posted by Abhi Sunny 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Name 3 different types of projection formula

Posted by Dolly Nirwan 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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Derive equation between ko & kc

Posted by Abhishek Singh 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is unitary theory?

Posted by Laboni Biswas 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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Effect of co2 on living and non living organisms

Posted by Jitendra Kumar 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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Why is hybridization important .

Posted by Pranjal Pandey 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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The ionization enthaply of nitrogen is more but oxygen is not

Posted by Yashi Aggarwal 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Gurleen Kaur 8 years, 3 months ago

Because nitrogen has half filled electronic configuration and more energy is used to take 1 electron out from Shell

ANSWER

Why the enthalpy of neutralisation of strong acid or strong base is always -57.1kJ/mol

Posted by Ayushi Soni 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Why does not enter in nucleus.

Posted by Anshul Kaushik 8 years, 3 months ago

CBSE > Class 11 > Chemistry

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Why electron does not enter in nucleus.

Posted by Anshul Kaushik 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Vandana Amol 8 years, 3 months ago

Due to attraction electrons are not stationary. They revolve around the nucleus in the orbit. So centrifugal force balance the force of attraction.

ANSWER

Who replaced the concept of fixed path with probability of finding electron?

Posted by Kashish Verma 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Wasim Akram 8 years, 3 months ago

Hiensberg

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State the theory according to which energy travel in discontinuous form

Posted by Kashish Verma 8 years, 3 months ago

CBSE > Class 11 > Chemistry

2 answers

Aasim Usmani 8 years, 3 months ago

Quantum theory said that

Wasim Akram 8 years, 3 months ago

Planks quantum theory

ANSWER

On the basis ofvsper theory predict the shape of following molecules 1 C

Posted by Sachin Dada Singh 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

How can balance the chemical equation

Posted by Deekshant Suryawanshi 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Vandana Amol 8 years, 3 months ago

1. By hit and trial method . 2. By partial decomposition method. 3. By oxidation number method. 4. By ion electron method.

ANSWER

Is any mass of elments severally?

Posted by Roshan Verma 8 years, 3 months ago

CBSE > Class 11 > Chemistry

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Explain why the electron gain enthalpy of flourine is less negative than that of chlorine?

Posted by Gaurav Gunwant 8 years, 3 months ago

CBSE > Class 11 > Chemistry

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What is threshold frequency?

Posted by Yashvardhan Chauhan 8 years, 3 months ago

CBSE > Class 11 > Chemistry

2 answers

Aasim Usmani 8 years, 3 months ago

Minimum frequency required to eject an electron at zero velocity ??????

Suraj Singh 8 years, 3 months ago

The minimum amount of energy required to emit electron is called threshold frequency.

ANSWER

What is the syllabus of first unit test of class 11??

Posted by Ankita Verma 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Dipanshu Choudhary 8 years, 3 months ago

Physical world ,dimensions, motion in a straight line, motion in a plane

ANSWER

Line emittion

Posted by Saransh Khosla 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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Define green house effects

Posted by Merlin Koshy 8 years, 3 months ago

CBSE > Class 11 > Chemistry

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What is CaCO3

Posted by Pawan Adhikari 8 years, 3 months ago

CBSE > Class 11 > Chemistry

4 answers

Ekansh Verma 8 years, 3 months ago

Calcium carbonate

Ridhi Kaushal 8 years, 3 months ago

It's calcium carbonate

Aashita Sharma 8 years, 3 months ago

Calcium carbonate

Manju Pandey 8 years, 3 months ago

Calcium carbonate

ANSWER

Please explain resonating structure..and molecular orbital

Posted by Kritika Srivastava 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

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What kind question will be asked in che Practical

Posted by Rahul Choudhary 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What is bond order

Posted by Rites Lalu 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Manju Pandey 8 years, 3 months ago

No. of bonds between two atoms.

ANSWER

Oxidation number of NO³-

Posted by Siddharth Pathak 8 years, 3 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Oxidation no of NO3-

Posted by Siddharth Pathak 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Manju Pandey 8 years, 3 months ago

Oxidation no. of N is +5

ANSWER

Chemistery

Posted by Siddharth Pathak 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Tushar Satyam 8 years, 3 months ago

The study of atoms and atomic structure is called chemistry

ANSWER

Why electrons can't stay in the nucleas

Posted by Tushar Satyam 8 years, 3 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayush Meena 8 years, 3 months ago

Electron are negatively charged particles and nucleus only contain positively charged particle. If electron are embedded in nucleus then electron and protons collide with each other which led to instability of an atom.

ANSWER

What is electronic confirgration

Posted by Md Shaban Ansari 8 years, 3 months ago

CBSE > Class 11 > Chemistry

2 answers

Manju Pandey 8 years, 3 months ago

The distribution of electrons in orbitals is known as electronic configuration.

Tushar Satyam 8 years, 3 months ago

The structure of atom in which electron revolves around nucleas.. Is known as electronic configuration.

ANSWER

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