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explain equilibrium constant?where it is used

Posted by Sivan Karthick 7 years, 1 month ago

1 answers

???. Pragati 7 years, 1 month ago

The equilibrium constant is a ratio of the concentration of the products to the concentration of the reactants. If the K value is less than one the reaction will move to the left and if the K value is greater than one the reaction will move to the right.

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What is order of ionisation enthalpy in 1st group in periodic table ?

Posted by Jasmeet Singh ?? 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Simple form to solve paradox method ... ??

Posted by Yash Jai 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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How do gases deviate

Posted by Abhishek Kumar 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is the discovery of chemistry

Posted by Rahuk Saini 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Plzz balance this equation with oxidation no method pb3o4+hcl=pbcl2+cl2+h2o

Posted by Priyanshi Bhardwaj 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Calculate the no. Of photon emitted by a bulb of 100 watt having efficiency 80% in 10 min and wavelength of photon is 310nm.

Posted by Ayush Kumar 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is protonic acid?

Posted by Divya Tripathy 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ashwani Dhanoa 7 years, 1 month ago

Hi Divya Ashwani Dhanwan Here An acid that forms positive hydrogen ions in aqueous solution. They gave hydrogen ion.

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What is fcc in solids.....?

Posted by Shivam Sharma 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Hajira Thabasum 7 years, 1 month ago

Face centered cube. In this type, the e` are present at corners of the cube as well as the center of the faces of the cube.

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What is" Hess's law of constant heat summation" & formula ?

Posted by Shrey Rajput 7 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Shrey Rajput 7 years, 1 month ago

Numerical formla?

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Yogita Ingle 7 years, 1 month ago

Hess’s Law- The law for constant heat summation was derived in the year 1840, a Swiss-born Russian chemist and physician, Germain Hess, derived a relationship in thermochemistry for calculating the standard reaction enthalpy for multistep reactions. It basically exploits the properties of state functions, that is the value of state functions do not depend on the path taken for formation or dissociation rather it depends only on state at the moment (temperature, pressure, volume, etc). As we know enthalpy is a state function, hence, it is independent of the path taken to reach the final state starting from the initial state. According to Hess’s law, “for a multistep reaction the standard reaction enthalpy is independent of the pathway or number of steps taken, rather it is the sum of standard enthalpies of intermediate reactions involved at the same temperature”.

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Enthalpy of reaction

Posted by Farhan Khan 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Ankit Singh 7 years, 1 month ago

Right defination yakshi

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Yogita Ingle 7 years, 1 month ago

Enthalpy or Heat of Reaction:
It is the change in enthalpy that accompanies a chemical reaction represented by a balanced chemical equation.
ΔrH = ΣH_(p) – ΣH_(R)
Enthalpy of reaction expressed at the standard state conditions is called standard enthalpy of reaction (ΔH).

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Yakshi ? 7 years, 1 month ago

So....u can say that ......enthalpy is a kind of energy but the difference is that it is in minimum amount i.e.1 mole

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Yakshi ? 7 years, 1 month ago

Harshit.....he is asking that what is enthalpy of a rxn.....?

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Swaggy Harshit⚘ 7 years, 1 month ago

Where is the rxn--?

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Alkynes

Posted by Akanksha Koundal 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Akanksha Koundal 7 years, 1 month ago

Oxidation of alkyne

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What is meant by redox reaction

Posted by Dayanand Huddar 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Ankit Singh 7 years, 1 month ago

The formation of hydrogen fluoride is an example of a redox reaction. Another example of a redox reaction is the formation of hydrogen fluoride. We can break the reaction down to analyze the oxidation and reduction of reactants. The hydrogen is oxidized and loses two electrons, so each hydrogen becomes positive.An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

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Dissociation of Li3Na3(AlF6)2

Posted by Vivek Soni 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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what is a redox reaction?

Posted by Harshita Gedam 7 years, 1 month ago

CBSE > Class 11 > Chemistry

7 answers

Ankit Singh 7 years, 1 month ago

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Yakshi ? 7 years, 1 month ago

I was wrong????????

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Ankit Singh 7 years, 1 month ago

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.

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Yakshi ? 7 years, 1 month ago

Hope it's clear???

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Yakshi ? 7 years, 1 month ago

So.....in reduction.......addition of hydrogen and removal of oxygen takes place while oxidation is completely diff....in oxidation...addition of oxidation and removal of hydrogen takes place......and a rxn in which both of them occurs is known is redox

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Yakshi ? 7 years, 1 month ago

Redox reaction is the rxn which is combination of reduction and oxidation rxn.......so...to know about redox rxn..u have to know that what is reduction and oxidation

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???. Pragati 7 years, 1 month ago

Redox is a chemical reaction in which the oxidation states of atoms are changed. Any such reaction involves both a reduction process and a complementary oxidation process, two key concepts involved with electron transfer processes... In a simple word combination of oxidation and reduction reaction is known as redox reaction ??

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2H- H2 sign of ∆H will be

Posted by Khushi Dubey 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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What weight of H2SO4 with excess of Bacl2 o give 0.232 gm BaSo4 ??

Posted by Sheetal Singh 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is azimuthal quantum number

Posted by Gaurav Raj 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Yogita Ingle 7 years, 1 month ago

Azimuthal quantum number:
Azimuthal quantum number (or) orbital quantum number represents the sub shell to which an electron belongs.
Azimuthal quantum number is denoted by the symbol l.
Value of l ranges from 0 to (n-1).
Azimuthal Quantum Number (l) = 0
Azimuthal Quantum Number (l) = 1
Azimuthal Quantum Number (l) = 2
Azimuthal Quantum Number (l) = 3

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can phosphorus with outer electronic c

Posted by Meenakshi Pareek 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Why is reason as CO is poisonous ?

Posted by Lakshay Gill 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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Can somebody help in chemistry that which topic i should read first or topic series for better understanding.

Posted by Sarika Pandey 7 years, 1 month ago

CBSE > Class 11 > Chemistry

5 answers

Sarika Pandey 7 years, 1 month ago

That chapter i have studied after that

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Christin Mathew 7 years, 1 month ago

Yeah. Some basic concepts of chemistry is the first chapter in your text

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Sarika Pandey 7 years, 1 month ago

Topics not chapter

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Christin Mathew 7 years, 1 month ago

What is chemistry and its development

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Christin Mathew 7 years, 1 month ago

Some basic concepts of chemistry

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What do you mean by molecular orbital theory

Posted by Christin Mathew 7 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Sheetal Singh 7 years, 1 month ago

Like atomic orbital molecular orbitals arr also present in a molecule. Atomic orbitals are named as s,p,d,f while molecular orbitals named as small sigma , pi , bid delta etc.

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Rudransh Kalia 7 years, 1 month ago

https://classnotes.org.in/class11/chemistry/chemical-bonding-molecular-structure/molecular-orbital-theory/ You can get help from this link . It has explained the thing very briefly

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Important topics in redox reactions, immediately

Posted by Christin Mathew 7 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Aman Singh 7 years, 1 month ago

Balancing of redox reactions and electrode potential chapter is a important for class 11 and it will also help in electrochemisty chap in class 12

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Amanjot Singh 7 years, 1 month ago

there are only balancing in acidic medium or basic medium

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What is gangbang

Posted by Raftaar Singh 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Aryan Bhure 7 years, 1 month ago

Bhai padai ki baate kar

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The compound Agf2 is unstable. However if formed the compound act as a very strong oxidising agent.why?

Posted by Veena Singh☺️? 7 years, 1 month ago

CBSE > Class 11 > Chemistry

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What is lindlars catalyst?

Posted by Vannamalarnathan M 7 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Christin Mathew 7 years, 1 month ago

Palladised charcoal partially deactivated with charcoal

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What do you mean by hybridisation? Explain

Posted by Christin Mathew 7 years, 1 month ago

CBSE > Class 11 > Chemistry

2 answers

Christin Mathew 7 years, 1 month ago

Thanks very much ?

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Gaurav Seth 7 years, 1 month ago

The process of "intermixing of atomic orbitals of nearly same energies to form a new set of orbitals having equivalent energies" is called hybridization. And orbitals which are formed in hybridization process are called hybrid orbitals.

Conditions for the hybridization:

· Orbitals of same element should take part in the hybridization.

· There should be minimum difference between the orbitals undergoing hybridization.

Characteristics of Hybridization:

· During hybridization the number of hybrid orbitals formed is equal to the number of atomic orbitals involved in hybridization.

· Hybrid orbitals form more stable and stronger bonds than pure atomic orbitals.

· Hybridization does not take place in isolated atoms and possible in those atoms which are prior to participate in chemical bonding.

Types of Hybridization:

· Different types of orbitals intermix with each other to form different types of hybrid orbitals.

· Hybrid orbitals are formed by mixing of s, p and d atomic orbitals.

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