Recently Active Chemistry Questions

What is the number of electrons in cyclobutadienyl anion? ...

What is the structure of cyclobutadienyl anion(C4H4)2- ? I dont understand where the -ve charges will be placed. ...

greater is the s-character .................... is the bond energy... (A) Greater (B) lower (C) both (D) none of these ...

How does the water accelerate the reaction rate in diels-alder reaction? can you guys explain detaily? ...

Q. In de brogile equation what is the units of KINETIC ENERGY?? ...

Arrange in order of Elecctronegativity .Oxygen(A), Chlorine(B), Sulphur(C). ...

Calculate the percentage of available chlorine in a sample of 3.546 g of bleaching powder which was dissolved in 100 mL of water,25 mL of this solution,on treatment with KI and dilute acid,required 20 mL of 0.125 N sodium thi ...

Which of the following is an expression of ideal gas equation- ...

In which of the compounds given below is there more than one kind of hybridisation (sp,,s{p^2},,s{p^3}) for carbon (i) C{H_3}C{H_2}C{H_2}C{H_3} (ii) C{H_3} - CH = CH - C{H_3} (iii) C{H_2} = CH - CH = C{H_2} (iv) H - C equiv C ...

(a)A zinc rod weighing 25.00 g was kept in 100 mL of 1 M CuSO4 solution.After a certain time molarity of Cu2+ in solution was 0.8 M.What was the molarity of the sulphate ion(SO42-)?What was the weight of the zinc rod after cl ...

Carbocation which is most stable ...

two set of four quantum no of an electron are written below a. ( n=4, l=3, m=3, s=1/2 ) b. ( n=3, l=2, m=-2, s=0 ) which one of this set is not correct and why. ...

The enolic form of acetone contains ...

Dipole moment is shown by ...

mathop {^ - :C{H_2} - mathop Climits_{||}Â - C{H_3}}limits_{,,,,,,,,,mathop Olimits_{ cdot ,, cdot } ,{:^ - }} and mathop {C{H_2} = mathop Climits_|Â - C{H_3}}limits_{,,,,,:,mathop Olimits_{ cdot ,, cdot } ,:{,^ - }} are ...

In a certain alternate Universe the Aufbau principle is known to not work.The order of shell filling is according to the ascending order of azimuthal quantum numbers. What kind of element then will Calcium Be ? ...

1. Sate two limitation of Bhor's theory of Hydrogen. 2.Show that maximum no.of electrons in an energy level of an atom is 2n2. ...

The density of gas A is twice that of B at the same temperature the molecule weight of gas B is thrice that of A. the ratio of pressure of gas A and gas B will be: ...

Which of these gases have a triple bond? ...

1. Two sets of four quantum no. of an electron are written below a.( n=4, l=3, s=1/2). ...

1. Two ...

What is the product formed formed when Methylbenzene is treated with SO2Cl2 in presence of peroxides?Thanks. ...

cosider these two reactions, *Image* My question is why in the case of chlorination the major product formed is different than the one formed in the bromination..? ...

What is the shape of the d and f orbitals????are they three dimensional or two D??? ...

Which species has the maximum number of lone pair of electrons on the central atom ...

In the reaction overset{ ext{I},,}{mathop{C{{H}_{3}}CON{{H}_{2}}}},underset{Delta}{mathop{xrightarrow{{{P}_{2}}{{O}_{5}}}}},overset{text{I}}{mathop{C{{H}_{3}}CN}}, , the hybridisation state of the carbon atom (I) changes from ...

A straight chain hydrocarbon has the molecular formula {C_8}{H_{10}} . The hybridisation for the carbon atoms from one end of the chain to the other are respectively s{p^3},,s{p^2},,s{p^2},,s{p^3},,s{p^2},,s{p^2},,sp and sp. ...

How do you obtain ethyl amine from ethyl alcohol? ...

Number of pi electrons in cyclobutadienyl anion {({C_4}{H_4})^{2-}} is ...

Which of the following has a trigonal planar (or triangular) structure ...