Recently Active Chemistry Questions

Explanation reqd for the following statements: 1)"It is due to the absence of the d-orbital that the maximum covanlce of Boron is 4" 2)"Borax(Na2B4O7.10H2O)is said to contain the tetranuclear units[B4O5(OH)4]2- and correct fo ...

1) Provide the products of the reaction of the substrate ClCH2OCH2CH3 with NaNO2 in EtOH. Also pls explain the logic behind the formation of the products. 2)Pls draw the structures of the following compounds for me. (i)cyclop ...

Q. How can the polarisation of 'acrolein' be written ? CH2=CH -CH=O ( here the middle dash is the single bond ) ...

Find the weight of CH3COONa needed to add to 1L N/10 CH3COOH to obtain a buffer solution of pH=4 ? Ka=1.8 x 10-5 ...

If degree of ionization of water=1.8 x 10-9 at 298 K,then find its ionization constant ...

For reaction, A(g)↔B(g)+C(g) prove that Kp=α2(Kp+P) ...

*Image* Ques1) For the above pair of structures, identify the relation b/w them. Are thay enantiomers, diasterioisomers, structural isomers, or two molecules of the same compound? Ques2) *Image* How many optical active forms ...

What is total volume of solution(in ml) when 1M NaOH is required to be added in 100mL 1M CH3COOH(Ka=10-5) solution so that pH is 6. ...

For reaction 2HI↔H2+I2 Prove that the degree of dissociation α of HI is related to equilibrium constant Kp by the expression \frac{2\sqrt{K_p}}{1+2\sqrt{K_p}} ...

A nucleus is located at(0,0,0).If the probability of finding an s-orbital electron in a tiny volume assumed (a,0,0) is 1 x 10-5.Then find probability of finding an electron in the same sized volume around (0,a,0) ...

The increasing order of dipole moment is a)CH3I<CH3Br<CH3Cl<CH3F b)CH3F<CH3Cl<CH3Br<CH3I c)CH3I<CH3Br<CH3F<CH3Cl d)None ...

C-O bond order lowest in ? [Mn(CO)6]+ [Fe(CO)6]+ [Cr(CO)6]+ [V(CO)6]+ ...

1.Gas that strikes in thundering of light is: (a) CO (b) NO (c) CO2 (d) H2 ...

A gaseous mixture of O2 and X containing 20% (mole%) of X, diffused through a small hole in 234 second, while pure O2 takes 224 seconds to diffuse through the same hole. Find the molecular weight of X ??????????? Please expla ...

*Image* Is the compound opticaly active?? ...

hello, can someone please explain to me the order of the basicity of the following compounds: ortho methyl aniline meta methyl aniline para methyl aniline if we make the conjugate acids we'll find that ortho is the most stabi ...

how to do the derivation of the correction term for pressure for ideal gas equation ...

can someone plz tell me what are pseudo halide ions??? ...

1. Saturated solution of KNO3 is used to make salt bridge because (a) velocity of K+ is greater than that of NO3- (b) velocity of NO3- IS GREATER than that of K+ (c) velocity of both K+ and NO3- are nearly the same (d) KNO3 I ...

This thread dedicated to some good conversions in organic chemistry...Hoping for healthy debate Q1 *Image* ...

A: Aldehydes and ketone give nucleophilic addition reactions with carbon,oxygen,nitrogen and sulphur nucleophiles R: Sulphite ion is ambident nucleophile ...

an aldoheptose has x stereoisomers and a ketoheptose ha y Find x/y the answer is not 2/1 ...

The molecules that will have dipole moment are: (a)2,2-dimethylpropane (b)trans-2-pentene (c)cis-3-hexene (d)2,2,3,3-tetramethylbutane ...

Pick up the molecule which has zero dipole moment- (a)NH3 (b)H2O (c)BCl3 (d)SO2 ...

I'm a IX student. Will please tell me that though Hydrogen has a great similarity with the properties of elements of the Halogen Group, why is it placed in the Ist group of the Periodic table? ...

Bond angle is minimum for: (a)H2O (b)H2S (c)H2Se (d)H2Te ...

Specify the coordination geometry around and hybridisation of N and B atoms in a 1:1 complex of BF3 and NH3 (a)N:tetrahedral,sp3;B:tetrahedral,sp3 (b)N:pyramindal,sp3;B:pyramindal,sp3 (c)N:pyramindal,sp3;B:planar,sp2 (d)N:pyr ...

Amongst the C-X bond ,the correct bond energy order is - (a)C-Cl>C-Br>C-I (b)C-I>C-Cl>C-Br (c)C-Br>C-Cl>C-I (d)C-I>C-Br>C-Cl ...

1 gm of dry green algae absorbs 4.7 x 10 to the power -3 mole of CO2 per hour by photosynthesis as starch,how long would it take for the algae to double their own weight????? ...

Q1 Identify the least stable ion amongst the following-(a)Li-(b)Be-(c)B-(D)C- ...