Recently Replied Questions

• Trigonometeric Function
  If K= sin (pi/18) sin (5pi/18) sin ( 7pi/18) , then numerical value of K is ...
  0·2· #Mathematics#Trignometry
  replied2011-06-28 07:56:21
• Gases
  A certain fictitious gas is found to obey Van der Waals eqn exactly.the volume of gas is changed from Vi= 1000nb to Vf=2000nb. assume that a is small compared to pV2/n2 ,but not negligible. if change in volume occured at cons ...
  0·1· #Chemistry#Physical Chemistry
  replied2011-05-12 06:53:13
• jee-98 q
  st1: hno3 is strongr acid than hno2.' st2: in hno3, there are 2 nitrogen to oxgen bonds, but in hno2,there's only 1. in ans--st 2 is given correct.... pls confrm it shud be incorrect. thanx ...
  0·5· #Chemistry#Inorganic Chemistry
  replied2011-05-09 01:58:31
• ANOMALOUS IONIZATION ENTHALPY OF GROUP 13 ELEMENTS
  The general trend in ionization enthalpies should be B>Al>Ga>In>Tl as first I.E. decreases down a group. But the actual trend is B>Al<Ga>In<Tl. why????? ...
  0·1· #Chemistry#Inorganic Chemistry
  replied2011-05-09 01:44:14
• isat doubt
  optically activ alcohol: 3 methyl 2 penten-2-ol 2 ethyl 3 buten-1-ol both are opticly activ... plese confrm ...
  0·4· #Chemistry#Organic Chemistry
  replied2011-05-08 09:24:43
• Ionic Equilibrium
  A Solution M prepared by mixing 300mL of 0.40M weak monoprotic acid HA (Ka=5.0 x 10-6) and 200mL of 0.5M HCl. if 500mL of 0.28M NaOH is added to solution M,the final pH is the answer is integer type (0-9) solve karo yaron imm ...
  0·2· #Chemistry#Physical Chemistry
  replied2011-05-08 08:16:01
• Test:206 QNo:4
  In the catalytic oxidation of ammonia an oxide is formed which is used in the preparation of HNO3. This oxide is ...
  0·1· #Miscellaneous#Disucss Test Questions
  replied2011-04-12 09:55:31