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Consequences of Schottky defect:- 1. As the number of ions decreases as a result of this defect, the mass decreases whereas the volume remains the same. Hence density of the solid decreases 2. The crystal begins to conduct electricity to a small extent by ionic mechanism 3. The presence of too many voids lowers lattice energy and the stability of the crystal Consequences of Frenkel defect:- 1. As no ions are missing from the crystal lattice as a whole, therefore density of the solid remains the same 2. The closeness of like charges tends to increases the dielectric constant of the crystal 3. The crystal conducts electricity to a small extent by ionic mechanism

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Balanced the chemical equation :NH3 +cl2=nh4cl+n2

Posted by Ayushi Dixit 5 years, 8 months ago

CBSE > Class 12 > Chemistry

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What is heisenbergs uncertainity principle

Posted by Varun Jayan 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Azmat Ali 7 years, 5 months ago

Heisenberg's uncertainty principle states that ,"it is impossible to measure the speed and position of small particles with accurate accuracy . If we try to measure any of these quantities with higher accuracy , the other becomes less accurate . : Delta x = uncertainty in position : delta v = uncertainty in velocity : delta p = m . Delta v Acc. To principle , h/M.V OR H/ P

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Discuss the pattern of variation in the oxidation state of P to Bi

Posted by Soumen Pradhan 7 years, 5 months ago

CBSE > Class 12 > Chemistry

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Give a method to convert amorphous solid into crystalline solid?

Posted by Komal Sharma 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Komal Sharma 7 years, 5 months ago

Quartz can be converted into glass by melting the quartz and then cooling it randomly

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what will be the mole fraction of water in C2H5OH Solution containing equal number of mole of water and C2H5OH ?

Posted by Divya Makwana 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Aadarsh Hanuman 7 years, 5 months ago

0.5 mol

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Define crystal field splitting and d-d transitions?

Posted by Anchal Thakur 7 years, 5 months ago

CBSE > Class 12 > Chemistry

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oxidation of aldehyde and ketone

Posted by Neeraj Chand 7 years, 5 months ago

CBSE > Class 12 > Chemistry

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1 Faraday =96500c,how

Posted by Kusum Rani 7 years, 5 months ago

CBSE > Class 12 > Chemistry

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The osmotic pressure of solution containing 9.2gm of a substance in 302ml of solution was found to be 4.1atm at 15.5℃ calculate the value of solution constant

Posted by R T 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Kusum Rani 7 years, 5 months ago

I think you have missing to give substance /compound name, otherwise answer will be 434.08

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What is charcoal

Posted by Danish Malik 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Riya Chaurasiya 7 years, 5 months ago

Form of carbon

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What is free radical mechanism ?

Posted by Deeksha Dubey 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Kusum Rani 7 years, 5 months ago

The atoms or molecules having charges are called radical, radical having +ve charges are basic radical, radical having - ve charges are acid radical

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What is composition of copper pyrites

Posted by Pratham B 7 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Tamoghna Roy 7 years, 5 months ago

CuFeS2

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Kusum Rani 7 years, 5 months ago

Firstly I want to know about pyrites

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Last year compartment paper

Posted by Shruti Thakur 7 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Riya Singhal 7 years, 5 months ago

You can search on google

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Hina Sagar 7 years, 5 months ago

Which subject

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Water purication

Posted by Saurabh Singh 7 years, 5 months ago

CBSE > Class 12 > Chemistry

2 answers

Hina Sagar 7 years, 5 months ago

Kya janna h sahi se pucho

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Kusum Rani 7 years, 5 months ago

What means purication

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Chapter wise Board Question of last Five years

Posted by Abhishek Shukla 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Sahu 7 years, 5 months ago

Chapterwise boards questions from past 5 years are not available in the app . If you want them within the app then request the app developers/respondents in the help us section. Otherwise you can buy arihant's chapterwise solved board archive from the market from a bookstore . Further if you want any features in the app then tell them in the help us section or give the feedback in app store review .

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What happens when H2O2 reacts with H2SO4?

Posted by Satyam Singh 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Eakasnh Meena 7 years, 5 months ago

When h2o2react then hso4 and h3o are products in strong acid

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Difference between space lattice and crystal lattice

Posted by Sachin Kumar 7 years, 5 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 7 years, 5 months ago

The position of atoms, molecules, or ions in a solid crystal, relative to one other in space, is usually designated by points. Such a representation is called space lattice. Thus, we define the space lattice as an array of points showing how molecules, atoms or ions are arranged at different sites in three-dimensional spaces. Its dimensions along the three edges may or may not be mutually perpendicular.
Crystal Lattice is a three-dimensional representation of atoms and molecules arranged in a specific order/pattern. In other words, a crystal lattice can be defined as a geometrical arrangement of constituent particles of matter (atoms, ions or molecules) as points in space. There are total 14 possible three-dimensional lattices. Crystal lattices are also known by Bravais Lattices, named after the scientist Auguste Bravais. Each point in a lattice represents a lattice site or we can say lattice point. Each point denotes a particular type of constituent particles of matter be it an atom, molecule or an ion.By joining the lattices points inside the lattice we can define geometry of the lattice

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Structure of 3-ethyl,methyl butan-2-ol

Posted by Pari Khan 5 years, 8 months ago

CBSE > Class 12 > Chemistry