Recently Active Chemistry Questions

*Image* please explain the physical significance in the ihtersection of the lines of partial vapour pressure wen un equil. ...

i hav jus started with organic chemistry....can u all tell me will the theory der in brilliants study material be sufficent for it or do i need to study something else also from somewer???? ...

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FeC2O4 --> Fe 3+ + CO2 a)oxidation b)reduction C)disproportion d)redox reaction e)conversion multiple option correct question........... ...

How many steps are required to convert 1‐butanol to N‐ethylethanamine efficiently INTEGER ANS TYPE ...

plz give reason *Image* ...

*Image* Please explain these graphs fully. ...

STATE WITH REASONS : T/F : 1) Degree of dissociation of weak acid decreases on dilution. 2) The smaller the value of Ka of a weak acid, greater is the hydrolysis constant of the conjugate base. ...

A 150 mL of solution of iodine is divided into two unequal parts, First part reacts with hypo solution in acidic medium. 15 mL of 0.4 hypo solution was consumed. 2nd part was added to 100 mL of 0.3 M NaOH solution. Residual b ...

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starting 2010 with chem :) *Image* ...

*Image* The given arrangement has to be arranged in increasing order of water solubility. Why is the answer 4>3>2>1? In 1, chillation occurs. and i have some idea about 4 being a the top.But still, can someone please ...

(1) 1.5g of a monobasic acid when dissolved in 150g of water lowers the freezing point by 0.165°C. 0.5g of the same acid when titrated,after dissolution in water,requires 37.5ml of N/10 alkali. Calculate the degree of dissoc ...

(1) Sea water is found to contain 5.85% NaCl and 9.50% MgCl2 by weight of solution. Calculate its normal boiling point assuming 80% ionisation for NaCl and 50% ionisation of MgCl2[Kb(H2O) = 0.51kgmol-1K]. ...

(1) A complex is represented as CoCl3 . x NH3 . It's 0.1 molal solution in aq.solution shows ΔTf = 0.558°C. Kf for H2O is 1.86 K mol-1kg. Assuming 100% ionisation of complex and coordination no. of Co is six, calculate form ...

Only One Answer Correct. *Image* ...

arrange the following free radicals in increasing order of stability *Image* ...

1. For the cell ( at 298 K ) Ag(s)| AgCl(s) | Cl- (aq)||AgNo3(aq)|Ag(s) Which of the following is/are correct- (A) The cell emf will be zero when [Ag+] in anodic compartment = [Ag+] in cathodic compartment . (B) The amount of ...

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What will happen if trybutyltin hydride reacts with a halogen in presence of Me2C(CN)-N=N-C(CN)Me2? Can cyclisation occur?? Is the double bond(if present) affected? ...

is it only the +I effect of 2 methyl groups on nitrogen that makes N,N- dimethylpicramide more basic than picramide....???? Or some other effect also??? ...

Qn. - Find the structure of compound "D"................ But fr tht we have to find A,B,C obviously....!! :P *Image* ...

Single Option Correct. 1) An aqueous sol.n of MCl2 containing excess KCN, when treated with H2S will precipitate MS only if "M" is- A) Ni B) Co C) Cu D) Cd 2)A mixture of 2 colourless substanceswas dissolved in water. When ga ...

Each entry of Column 1 can be matched with one or more than 1 entries of Col. 2. Column 1 Column 2 A) B2H6 P) Can act as lewis acid B) BF3 Q) Intramolecular lewis acid-base interaction C) ICl3 R) Nonpolar D) SiF4 S) Nonplanar ...

Which of the following set of quantum numbers is impossible for an electron? n=1,l=0,ml=1,ms=+1/2 n=3,l=2,ml= -3,ms=+1/2 ...

why the first one can show iodoform test but not 2nd one *Image* ...

wht iz the str of L glucose ...

*Image* ans given is 9 but i think its 8 .. what do u all say ?? ...

What orbital has only positive values of wave function at all distances from the nucleus? 1s 2s 2p 3d ...

The mass to charge ratio for a cation is 1.5 X 10-8 kg/C.What is the mass of this atom? ...