Recently Active Chemistry Questions

To a 10 ml 1 M aqueous solution of Br2, excess of NaOH is added so that all Br2 changes to Br- and BrO3-. The resulting solution is freed from Br- by extraction and excess of OH- is neutralized by acidifying the solution. The ...

In NCERT Chemistry textbook, it says that AgBr shows both Frenkel and Schottky defects. Is this correct???? ...

For an hypothetical parallel I order reation, K1 and K2 are the rate constants A→B(K1) A→C(K2) if K1=2K2 the %yield of B is i am getting the eqn as -d[A]/dt=(d[B]+d[C])/dt is this correct and after that wat to do ... ...

Compound X reacts with HI.The product of the reaction when treated with KOH in ethanol gives Y(an isomer of X).Ozonylisis of Y (H2O2 workup) produces 2 compounds: A two carbon carboxylic acid and a four carbon ketone.What is ...

Phosphines are insoluble in water .How do u determine pka value for protanted phosphine in aq. soln. experimentally???? ...

Given that HOBr undergoes disproportionation,mention 2 pair of products which are possible???? *Image* ...

An optically active isomer of A is dextrorotatry.A on dissolving in organic solvent starts isomerising into leavorotatory form by first order process as A(+)→A(-) The data for progress of reaction is : *Image* Answer these ...

Mention all the type of isomerism which the given compound can show: [CoCl(NO2)(NH3)(en)]Cl ...

what is the product of the reaction of *Image* eith HBr in presence of acetic chloride ????? ...

the VW's constant 'a' for CO2 gas is greater then that of H2 gas. it means dat : a) strength of VW force of CO2 gas < that of H2 b) ---------------&# ...

why allylic halide is more reactive than alkyl halide in williamson's synthesis of ether ????? ...

one liter of O2 at STP is converted into H2O in acidic solution The number of faraday of electricity consumed are ? ...

There is density change in vacancy defect but no density change in Frenkel defect. They both involve dislocation of the atom in the lattice point to an interstitial space. So why do they show this difference? ...

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now that we know that Hydroboration oxdn doesn't cater for steric hinderanxe her's a soln of atest of this site Q1 *Image* what will be the final product after adding 1.BH3 / T.H.F 2.H2O2 /0H-1Your Answer: *Image* Correct Ans ...

solubility of AgCl in pure water is 8*10-6 solubility of AgBr in pure water is 4*10-6 solubility of AgI in pure water is10-6 find solubility of AgCl when all of these three mixed together??? ...

Whats the radius ratio range for square planar compounds ...

Why C6H5COOH is less acidic than HCOOH, but more acidic than CH3COOH? ...

For a given secondary halide the SN2 rxn is favoured by aprotic solvents why? ...

*Image* wat is the space lattice given in the fig refers to.. ...

1 gm mix of NaOH and Ca(OH)2 gets completely neutralised by x ml 1 M HCl solution the value of x can be (a)20 ml (b)26 ml (c)15 ml (d) 30 ML ...

how does an indicator correctly indicate the endpoint of a rxn , wen it can change colour over a range of ph eg range of phenolphtalein is 8 -10 but its used to indicate specific endpts like 8.5 ...

*Image* please give me a mechanism ...

Cyclohexanone is taken in D2O containing OD- and resulting mixture is stirred for several hours to form mainly a compound A.wat is A? wont it may be a rxn like keto enol conversion.if so please clear. ...

The solublity of AgBr in pure water is 5 *10-7 M. What is solublity of AgBr in a soln which contains 0.01 mol NaBr per litre??? ...

Which indicator i,e pH range would be suitable for titration of 0.1M C5H5NHCl with 0.1M KOH?? Kb C5H5N=1.8*10-9 ...

Whatr is ph of 1L buffer containig initially 0.02 mol NH3 and 0.02 mol NH4Cl after addition of 0.01 mol of NaOH? (Ignore volume change).pKa NH4+=9.24 ...

Does the pH increase .decrease or remains same on carrying out these processes: a)NaNO2 added to a solution of HNO2 b)(CH3NH2)CL added to soln of CH3NH2 c)HCl added to soln of CH3COONa ...

Does Hydroboaration oxidation has to do something to do with sterichinderance??Why?? ...

ROH +SOCl2+Pyridine →products for the above RxN Koverall=10-5[ROH][Cl-]+4*10-6[ROH][SOCl2]+10-6[ROH] and if the alcohol is optically active (the only chiral carbon atom is the one containing OH group) then find % RACEMI ...