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How will you form benzene from butanoic acid

Posted by Arvind Jangid 5 years ago

CBSE > Class 11 > Chemistry

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Why o less gain enthalpy than sulphur

Posted by Tejveer Singh 5 years ago

CBSE > Class 11 > Chemistry

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How many moles of proton will weight 200gm

Posted by Nonglemba Singha 4 years, 11 months ago

CBSE > Class 11 > Chemistry

1 answers

Sia ? 4 years, 11 months ago

The mass of 1 proton is same as the mass of 1 Hydrogen atom. One mole of hydrogen atom weighs 1 gm. Or, 1 mole of proton will weigh 1 gm. Therefore, 200 moles of proton will weigh 200gm.

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How many moles of electron will weigh 1 kg

Posted by Nonglemba Singha 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Pushpender Gill 5 years ago

1) first calculate the no. of electrons in 1g. 2) then, multiply the value with 100, u will get the answer!!

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Explain rules of Kabaddi

Posted by Rishitha Poleboina 5 years ago

CBSE > Class 11 > Chemistry

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Define heat of hydrogenations

Posted by Harshit Gautam 4 years, 11 months ago

CBSE > Class 11 > Chemistry

1 answers

Sia ? 4 years, 11 months ago

Heat of hydrogenation (symbol: ΔHhydro, ΔHº) of an alkene is the standard enthalpy of catalytic hydrogenation of an alkene. Catalytic hydrogenation of an alkene is always exothermic. Heat of hydrogenation of alkenes is a measure of the stability of carbon-carbon double bonds.

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Why H2O have bent shape

Posted by Shiva Singh 5 years ago

CBSE > Class 11 > Chemistry

2 answers

Aufditif Vh Fiotz8Yf 4 years, 11 months ago

Apna kam kar lode

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Aryan Singh 5 years ago

Because O has 2 lone pairs which do Repulsion among them Which cause the H²O to have a bent shape

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Give the geometry of XCo3 and Brf5

Posted by Tushar Gotwal 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Anay Studies 5 years ago

The geometry of BrF5 is octa hedral

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What is the difference between pie bond and sigma bond

Posted by Archana Dubey 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Anay Studies 5 years ago

Sigma bond is formed from head to head overlapping of sp3 hybridised orbitals, whereas pi bond is formed by side to side overlapping

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Calculate Bond order of Li2

Posted by Rashi Shetty 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Pushpender Gill 5 years ago

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Formula of Hard water and Hydrogen pereoxide

Posted by Rahul Yadav 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Anay Studies 5 years ago

Hard water D2O Hydrogen per oxide H2O2

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Calculate the energy associated with the second orbit of be 2+.what is the radius of this orbit?

Posted by Mohana N 5 years ago

CBSE > Class 11 > Chemistry

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Convert ethyne to but-2-ene

Posted by Kanika Daksh 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Yatin Mehta 5 years ago

This reaction involves two steps : Step 1 : When the terminal ethyne react with the sodamide to give acetylides. Step 2 : When acetylides react with haloalkane (ethylchloride) to give but-1-yne as higher alkynes.

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h2+i2=2hi value of kp at 460.C p49 if initial pressure ofh2 and i2 0.5determine the partial pressure of each gas

Posted by Kush Varshney 5 years ago

CBSE > Class 11 > Chemistry

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Draw the bond structure of 2 metyle hexane

Posted by Kush Varshney 5 years ago

CBSE > Class 11 > Chemistry

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Calculate the standard enthalpy of formation of benzene, if standard enthalpy of formation of CO2 and h2o are -393.5 kg mol inverse and -285.8 kg mol inverse and combustion of benzene is -326.0 kJ mol inverse

Posted by Mahalakshmi Bujji 5 years ago

CBSE > Class 11 > Chemistry

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An alkane a on ozonolysis gives a mixture of ethanal and propanal write the structure of a

Posted by Parth Suthar 5 years ago

CBSE > Class 11 > Chemistry

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HOW to convert Pent-2-yne to Pentan-2-one

Posted by Anchal Kanojia 5 years ago

CBSE > Class 11 > Chemistry

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Methane cannot be prepared by kolbe electrolysis

Posted by Aditya Sharma 5 years ago

CBSE > Class 11 > Chemistry

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Nitrogen molecules and molecular diagrams,,???

Posted by Aastha Kuldeep 5 years ago

CBSE > Class 11 > Chemistry

0 answers

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Sir / mam and friends please report #anish singh he is very cheap and abusing ...

Posted by ? Royal Thakur ? 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Ranger King 5 years ago

Yes

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My exam was near. How i prepare for chemistry in 1 day for my school final exam class 11???? Or how i revise it quickly in 1 day whole syllabus

Posted by Muskan Yadav 5 years ago

CBSE > Class 11 > Chemistry

3 answers

Aastha Kuldeep 5 years ago

Only prepare imps

1Thank You

? Royal Thakur ? 5 years ago

#Anish singh stop your nonsense and get out from here either i am going to report you ...you are sooo cheap and disgcusting ..?

8Thank You

? Royal Thakur ? 5 years ago

Go through notes and remember important formulas ...

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Among the elements B, Al and Si i) Which has the highest ionization enthalpy? ii) Which has the largest atomic radius?

Posted by Nitish Kumar 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Neeraj Gupta 5 years ago

A.Si B.Al

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Explain why cations are smaller and anions are larger in radii than their parent atom.

Posted by Nitish Kumar 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Neeraj Gupta 5 years ago

it is so because of no. of charge present in it. for eg :O^+2 has 14e^- because = 16e- of O2 and +2 present on it gives us 14e- .

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explain the shape of BCl3, CH4, PCl5 on the basis of vsepr theory

Posted by Nitish Kumar 5 years ago

CBSE > Class 11 > Chemistry

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Draw formula of first four members of each homologous series beginning with the following compounds I.ethyne II.methanol III.ethene

Posted by Priyanshi Sharma 5 years ago

CBSE > Class 11 > Chemistry

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Explain the effect of i) Addition of 2N ii) Addition of 2H iii) Addition of 3NH iv) Increase in temperature v) Increase in pressure on the equilibrium of the reaction 22332;92gggkjNHNHHmole

Posted by Bhavana P.S 5 years ago

CBSE > Class 11 > Chemistry

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Carbon show carnation property but lead does not

Posted by Vinita Gupta 5 years ago

CBSE > Class 11 > Chemistry

2 answers

Abhishek Rastogi 5 years ago

So sorry its inert pair effect if u dont understand then tell me

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Abhishek Rastogi 5 years ago

Because due to high inret pair effect its electron have less tendency to form multiple bond and also its size its very large so due to interatomic repulsion multiple bonds can not be formed

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What is aufbau principle??

Posted by Priyanshu Dixit 5 years ago

CBSE > Class 11 > Chemistry

1 answers

Jagdish 5 years ago

According to Aufbau's principal, electrons start getting filled in the increasing order of atomic orbitals' energy level i.e. first they get into orbital with lowest energy then start getting filled in higher energy level orbitals.

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What is magnetic quantum number ?

Posted by Addicted Arya 5 years ago

CBSE > Class 11 > Chemistry