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135 ml of a gas is collected over water at 25 degrees Celsius and 0.993 bar. If the gas weighs 0.160g and the aqueous tension at 25 degrees celsius is 0.0317, calculate the molar mass of the gas

Posted by Ankit Razz 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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Addition reaction of HBr2 to simatrical elkenes....

Posted by Saloni Sharma 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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Bond angle ,enthalpy and entropy

Posted by Ankit Yadav 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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in which atom, the outermost electron can have the n =3, l=0, m=0, ms=-1/2 set of quantum numbers?

Posted by Abhishek Katiyar 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Ansh Garg 7 years ago

May be in magnesium

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Important questions of all chapters

Posted by Tamanna? Dhull 7 years ago

CBSE > Class 11 > Chemistry

3 answers

Abhishek Katiyar 7 years ago

Relationship between cp and cv

Tamanna? Dhull 7 years ago

I asked all chapter questions of chemistry I need so much

Priyanshu Sharma 7 years ago

pv=nrt

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What is Lime cancer

Posted by Jenny Joseph 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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Some important things that are asked in final exam for 1 chapter ownward

Posted by Shaurya Jain 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Lily ☺ 7 years ago

Define atom and molecules onward?

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Explain why cycloocta-1,3,5,7 - tetraene is not aromatic ??

Posted by Abc ?⏳ 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Ansh Garg 7 years ago

Because aromatic hone ke liye 4n+2pie electrons hone chaiye but isme 4 pie electrons h

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What are the units of surface tension

Posted by Yuvsri Yuvsri 7 years ago

CBSE > Class 11 > Chemistry

2 answers

Ansh Garg 7 years ago

N/m and J/m^2

Abc ?⏳ 7 years ago

N/m

ANSWER

What is Grignred reagent??

Posted by Ismail Sk 7 years ago

CBSE > Class 11 > Chemistry

3 answers

Chirag Sharma 7 years ago

R Mg X. Jisme R koi bhi alkyl group aur X halogen

Meghna Sharma 7 years ago

R-Mg-X

Yogita Ingle 7 years ago

Grignard reagent is prepared by reacting alkyl(or)aryl(or)vinyl halide with magnesium in the presence of dry ether.
CH₃CH₂Br + Mg → CH₃CH₂MgBr

In the preparation of grignard reagent perfectly dry ether is required because Mg is a highly reactive metal it can easily reacts with water i.e side reactions will takes place.
Hence yield of the product will be reduced.

ANSWER

The correct quantum number of 3-p electron are

Posted by Aksh Raj 7 years ago

CBSE > Class 11 > Chemistry

2 answers

Meghna Sharma 7 years ago

n=3, l=1, s= + –1/2 for each value of m, m= 1,-1,0

Abhishek Bijarniya 7 years ago

n- 3 ,l-1

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H2o2 act as oxidising agent. Write oe chemical equation

Posted by Hridayesh Rawat 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Chirag Purohit 7 years ago

H2O2+Fe2+ ---------->Fe3+. +H20

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Anil and Subha are science students. They want to prepare 51 g of by combining dinitrogen and dihydrogen. They have 153 g of hydrogen. According to Anil's view for this, they have to mix 25.5 kg of nitrogen to the hydrogen while Subha suggestion was that they have to mix 42 g of nitrogen to the hydrogen. (i) According to you whose suggestion was correct and why? (ii) Which is the limiting reagent here? (iii) Find the excess reagent. (iv) Comment on the values associated with Anil and Subha?

Posted by Rohan Saini 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Anand Kumar 5 years, 5 months ago

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the threshold wavelength for emitting photons from a metal is6.0×10³ . what would be the wavelength of radiation to produce photoelectrons having twice the kinetic energy of those produced by radiation of wavelength3×10³ ?

Posted by Rohan Saini 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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Cyanogen is known as a pseudohalogen because it has some properties similar to halogens. It is composed of two CN's joined together. Do the two CN's join through the carbon or the nitrogen (i. e., C – N –N – C or N – C – C – N)?

Posted by Rohan Saini 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Chirag Purohit 7 years ago

C--N--N--C

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Benzene

Posted by Harsh Shukla 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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An isotope of Sn atomic number is 50 and mass number is 112 contains 68 neutrons. What will be its mass number?

Posted by Abdul Majid 7 years ago

CBSE > Class 11 > Chemistry

0 answers

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Short derivation of inert pair effect

Posted by Mohit Dubey 7 years ago

CBSE > Class 11 > Chemistry

1 answers

Mohit Dubey 7 years ago

The term inert pair effect is often used in relation to the increasing stability of oxidation states that are two less than the group valency for the heavier elements of groups 13, 14, 15 and 16