-
NH3 -- 107.5 PH3 -- 93.5 AsH3 -- 92 SbH3 -- 91.5 AsH3 -- 90 The H-E-H bond angle is expected to be a tetrahedral ideal of 109.5°, but since lone pairs repel more than bonding pairs, the actual angle would be expected to be s ...
-
1. Decreasing order of heat of combustion *Image* *Image* *Image* *Image* *Image* 2. Decreasing heat of hydrogenation *Image* Please explain the reason also :) ...
-
............................................................................. Not to jump, date hasn't been declared yet. Jump now if u feel like it...19th May 2010 (Chennai/Ajmer/PAnchkula regions) ..8:00 am... TOMORROW ! OL ...
-
between the two rkn which one will react more rapidly by sn2 rkn in PROTIC SOLVENT A) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2OH= product +HCl B) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2S-= p ...
-
between the two rkn which one will react more rapidly by sn2 rkn in PROTIC SOLVENT A) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2OH= product +HCl B) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2S-= p ...
-
between the two rkn which one will react more rapidly by sn2 rkn in PROTIC SOLVENT A) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2OH= product +HCl B) 1. *Image* + CH3CH2O-= product + Cl - 2. *Image* + CH3CH2S-= p ...
-
BITSAT 10 ,,,,,,,,,,,,,,
(%) Optical glass has high percentage of (A) MgO (B) B2O3 (C) PbO (D) Al2O3 Ans PbO ...
-
Most of us aren't happy with JEE-2010 and the way it was conducted?Can we do something?Can we have a re-exam? those in support of a re-exam do reply here............ ...
-
The following question is a conceptual one . So hope you like solving it : An article is published in the Times Of India . It reads - THEY STRIKE AGAIN : --- New Delhi , 17 - th Semptember , 2012 : Yesterday , a group of noto ...
-
1. let ABCD be unit sqaure. Four points E F G nd G are chosen on the sides AB BC CD nd DA respectively. the lenghts of the sides the quadrilateral EFGH are a,b,c,d. which of the following is true?? a. 1<=a2+b2+c2+d2<=2 ...
-
added Q20 , Q21 , Q22 Q1) If KMF can be written as LLH then RMS = a) SLR b) SLU c) SSU d) SUS Q2) If corden can be written as zrogbq then what can be written as pxivro a) mulmul b) sulsul c) munmun d) srspql Q3) if QDXM can b ...
-
which of the following statements is correct?? 1.BCl3 nd AlCl3 are both lewis acid but BCl3 is stronger 2.BCl3 nd AlCl3 are both lewis acid but AlCl3 is stronger 3.BCl3 nd AlCl3 are equally strong lewis acid 4.none of these ...
-
1. if W is the cube root of unity then (1-W+W2)5 +(1+W-W2) is equal to????? 2.if W is the cube root of unity then (1-W+W2)(1-W2+W6) is eqaul to??? ...
-
1. if W is the cube root of unity then (1-W+W2)5 +(1+W-W2) is equal to????? 2.if W is the cube root of unity then (1-W+W2)(1-W2+W6) is eqaul to??? ...
-
which of the following statements is correct?? 1.BCl3 nd AlCl3 are both lewis acid but BCl3 is stronger 2.BCl3 nd AlCl3 are both lewis acid but AlCl3 is stronger 3.BCl3 nd AlCl3 are equally strong lewis acid 4.none of these ...
-
if X,V and A denote displacement ,velocity and the accerleration of a particle executing SHM of time period T ,then which of the follownig will not change with time??? 1.A2T2 + 4k2V2 2.AT/X 3.AT+2kX 4.AT/V note, k=pie ...
-
Which is better IITs or IIMs? Placements/infrastructure/Academics etc ...
-
if X,V and A denote displacement ,velocity and the accerleration of a particle executing SHM of time period T ,then which of the follownig will not change with time??? 1.A2T2 + 4k2V2 2.AT/X 3.AT+2kX 4.AT/V note, k=pie ...
-
1.there are two straight lines. ten points lie on the first line and 8 point lie on the second line. of each points on the other line are joined to each other by line segment , the no. of point of intersction of these lines s ...
-
if X,V and A denote displacement ,velocity and the accerleration of a particle executing SHM of time period T ,then which of the follownig will not change with time??? 1.A2T2 + 4k2V2 2.AT/X 3.AT+2kX 4.AT/V note, k=pie ...
-
1 wrong question of increasing and decreasing functions(where the function itself was not given) assured 6 marks on attempting but still had a long and tiresome test and not a perfect maths test i wud hav wanted. how was urs? ...
-
anyone received it ????????????????? ...
-
*Image* a unoform magnetic filed of intensity 1T is appiled in a circular region of radius 0.1m directed in the plane of the paper . a charged particle of mass 5x10^-5 kg nd charge q=5x10^-4C enters the field with a velocity ...
-
whish set ws d easiest? according to u ? ...
-
Multi-correct. Q) In a prism of angle A and refractive index \mu , the maximum deviation occurs when - a) Angle of incidence is 90 deg. b) Angle of incidence is sin^{-1}\left(\left\{\sqrt{\mu^2-1} \right\}sinA-cosA \right) c) ...
-
*Image* this is compound optically active??? ...
-
can any one tell me about jadavpur university in kolkata, how is it?? ranking?? how much one needs to get in wbjee to get into ju with good branch... ...
-
A gas of temperature T is enclosed in a contained whose walls are (initially) at temperature T1. Does the gas exert a higher pressure on the walls of the container when T1<T or when T1>T? ...
-
Q1. The specific heat capacity of a monoatomic gas for the process TV2=constant is (where R is gas constant) (a) R/2 (b) 2R (c) R/3 (d) R/4 ...
-
Q1. The specific heat capacity of a monoatomic gas for the process TV2=constant is (where R is gas constant) (a) R/2 (b) 2R (c) R/3 (d) R/4 ...
