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How to convert benzoic acid into benzene?

Posted by Aditya Singhal 6 years, 10 months ago

1 answers

Saif Imam 6 years, 10 months ago

react benzene with NaOH then it will form sodium benzenoate then again react sodium benzenoate in the presence of soda lime it will give benzene and Na2CO3.

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How to convert benjoic acid into benjene? Plz help

Posted by Aditya Singhal 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

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Uses of calcium sulphate

Posted by Sachin Padasalagi 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

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Define state functions

Posted by Vijay Reddy 6 years, 10 months ago

CBSE > Class 11 > Chemistry

2 answers

Kapil Kapil 6 years, 10 months ago

Which is not depend on path

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Sangeeth M?? 6 years, 10 months ago

A quantity that is given unique value for each given state of system. Eg entropy, enthalpy

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How many sigma and pi bond in a molecule of ethylene

Posted by Tushar Sisodia 6 years, 10 months ago

CBSE > Class 11 > Chemistry

2 answers

Tanmay Saxena 6 years, 10 months ago

5 sigma 1 pi bonda

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Sangeeth M?? 6 years, 10 months ago

5 sigma 1 pi bonds

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Write the electronic configuration of O2

Posted by Tushar Sisodia 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Saif Imam 6 years, 10 months ago

1S2 2S2 2P4

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What are oxidising flame??

Posted by Shivangi Bhardwaj 6 years, 10 months ago

CBSE > Class 11 > Chemistry

2 answers

Shivangi Bhardwaj 6 years, 10 months ago

I have asked oxidising flame not radioactive elements... Read the question carefully Krishna

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Kp Mourya 6 years, 10 months ago

radioactive element. an element subject to spontaneous degeneration of its nucleus accompanied by the emission of alpha particles, beta particles, or gamma rays. All elements with atomic numbers greater than 83 are radioactive. Naturally occurring radioactive elements include radium, thorium, and uranium.

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What are radioactive elements??

Posted by Shivangi Bhardwaj 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Kp Mourya 6 years, 10 months ago

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What is hydration enthalpy? Please explain in a simple manner rather than writing definitions :)

Posted by Abhinandita Verma 6 years, 10 months ago

CBSE > Class 11 > Chemistry

3 answers

Shashvat Tripathi 6 years, 10 months ago

Minimum energy required to add or remove one Water molecule is called hydration enthalpy

2Thank You

Abhinandita Verma 6 years, 10 months ago

Thanks a lot

2Thank You

Yogita Ingle 6 years, 10 months ago

Increase in atomic number increases the size of the element which in turn outweighs increasing nuclear charge. Therefore the outermost electron experiences strong screening effect from the nuclear charge.
The energy released as a result of the formation of new bonds between ions and water molecules is called hydration enthalpy.
In alkali metals the hydration enthalpies decreases with the increase in ionic sizes.
Li⁺> Na⁺ > K⁺> Rb⁺ > Cs⁺

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How can i get ans of previous year question paper

Posted by Monty Kumar Singh 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

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write IUPAC name of *(CH3)3 CH ; *(CH3)3COH

Posted by Pragya Kumari 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayushi Ayushi 6 years, 10 months ago

IUPAC name of (CH3)3COH is 2-methylpropan-2-ol.and IUPAC name of (CH3)3CH is 2-methylpropane . Although it's more commonly called isobutane, despite this not being the "proper" IUPAC designation.

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Arrange the elements N, P, O and S in order of increasing first ionization enthalpy.

Posted by Divya Tripathy 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Pragya Kumari 6 years, 10 months ago

S < P < O < N

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What is esterification?

Posted by Himanshu Bandhe 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayushi Ayushi 6 years, 10 months ago

Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials, and often have a characteristic pleasant, fruity odor. This leads to their extensive use in the fragrance and flavour industry. Esterification is a reversible reaction.Example: H3C-COOH + HO-CH2-CH3 → H3C-COO-CH2-CH3 + H2O

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Can anyone can tell me best YouTube channel for ch. Classification of element and periodicity in properties of elements

Posted by Prashant Rai 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Saveer Khan 6 years, 10 months ago

Etoos India... I recommend u to download unacademy app...

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At what temprature both calcius and farheneit will be equal?

Posted by Aliya Husain 5 years, 8 months ago

CBSE > Class 11 > Chemistry

4 answers

Lily ☺ 6 years, 10 months ago

At -40

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Tripti Shah 6 years, 10 months ago

At -40 degree both celcius and Fahrenheit are same.

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Komal Mehta 6 years, 10 months ago

-40

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Vikash Yadav 6 years, 10 months ago

-40

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Calculate the molarity of H2O2 labeled as 10 volume H2O2?

Posted by Princedeep Kaur 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

I needed chapter summary

Posted by Ganesh Loni 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Farhan Khan 6 years, 10 months ago

Throw youtube

6Thank You

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Which is most strong electron withdrawing group among NO2 and O-CH3?

Posted by Hemant Tiwari 6 years, 10 months ago

CBSE > Class 11 > Chemistry

2 answers

Abhinandita Verma 6 years, 10 months ago

No2 because nitrogen is bonded with two second most electronegative elements, it generates a strong partial positive charge on nitrogen

2Thank You

Sahil Sharma 6 years, 10 months ago

He it is NO2

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How find standard enthalpy

Posted by Chetan Singh 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

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Differentiate between butane and butene

Posted by Navya Sajin 6 years, 10 months ago

CBSE > Class 11 > Chemistry

3 answers

Richa Purvey 6 years, 10 months ago

Butane is alkane ..1. it is saturated 2. It has only sigma bond and butene is alkene.. 1. it is unsaturated

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Veena Singh☺️? 6 years, 10 months ago

In butane , there is single bond between carbon atoms and in butene there is double bond between carbon atoms .

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Littleshine Aaaru?? 6 years, 10 months ago

Butane is saturated hydrocarbon (alkane) while butene is unsaturated hydrocarbon

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Give the value of n and L of 11th electron of potassium according to quantum no. Concept..

Posted by Richa Purvey 6 years, 10 months ago

CBSE > Class 11 > Chemistry

2 answers

Richa Purvey 6 years, 10 months ago

But it is in p orbital then for p it should be 1.. I m confused because of this

1Thank You

Veena Singh☺️? 6 years, 10 months ago

n = 3 & l= 0

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Is solid state and p block from 12th std portion shifted to 11th....??

Posted by _Harina_07 . 6 years, 10 months ago

CBSE > Class 11 > Chemistry

4 answers

Divya Khadse 6 years, 10 months ago

yes

1Thank You

Shivangi Bhardwaj 6 years, 10 months ago

yes

2Thank You

Littleshine Aaaru?? 6 years, 10 months ago

P block nitrogen family only

2Thank You

Littleshine Aaaru?? 6 years, 10 months ago

Yes

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State and explain Hess's law of heat summation

Posted by Monica Monica 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

How we express scientific notation if n>1

Posted by Siddhi Pandey 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

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1ml of 13.6 molar HCl is diluted to give 1litre of solution find pH of solution?

Posted by Roshan Kumar 6 years, 10 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What is fallency

Posted by Chirag Malviya 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayushi Ayushi 6 years, 10 months ago

If your mean valency . Here is your answer Valency of an atom is equal to the number of electrons in the outer shell. If the number of electrons in the outermost shell is four or less than four then it is the valency of that atom. Otherwise, the valency is eight minus the number of electrons in the outermost shell. If you know the number of electrons in the outer shell then you can calculate the valency.

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What is heterogeneous mixture

Posted by Aaditya Rathore??? 6 years, 10 months ago

CBSE > Class 11 > Chemistry

5 answers

Ayushi Ayushi 6 years, 10 months ago

Your wellcome.

2Thank You

Ayushi Ayushi 6 years, 10 months ago

Your wellcome. And your answer is................Homogeneous mixture •A mixture which has uniform composition and properties throughout its mass is called a homogeneous mixture. •Example: All solutions such as sugar solution, salt solution etc

2Thank You

Aaditya Rathore??? 6 years, 10 months ago

Thanks Ayushi but also tell me the defination of homogenous mixture please

2Thank You

Shivansh Raghuwanshi 6 years, 10 months ago

Yes,thats correct.

2Thank You

Ayushi Ayushi 6 years, 10 months ago

Heterogeneous mixture •A mixture which has a different composition and properties in different parts of their mass is called a heterogeneous mixture. •Example: Suspension (sand mixed with salt, sugar in oil) and colloids (milk in water).

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How would you calculate the ph of 0.001M NaOH??

Posted by Gaurav Kumar 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayushi Ayushi 6 years, 10 months ago

NaOH is a strong base that dissociates completely Therefore [OH-] = [NaOH] = 0.001M First calculate the pOH of the solution : pOH = -log [OH-] pOH = -log 0.001 pOH = 3.00 pH = 14.00 - pOH pH = 14.00 - 3.00 pH = 11.00

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What we obtain by burning orthophosphorous

Posted by Rohit Raj Khanna 6 years, 10 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayushi Ayushi 6 years, 10 months ago

When Orthophosphorus acid is heated, then following reaction takes place, 4H3PO3 → 3H3PO4 + PH3 it forms phosphoric acid and phosphine this reaction yields a number of undefined phosphorus suboxides as well.

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How many types of hydrocarbons

Posted by Manish Singh 6 years, 10 months ago

CBSE > Class 11 > Chemistry