Messages posted by sudhindra95@gmail.com

which one of the following has the smallest heat of hydrogenation? (plzz explain)

a) 1-Butene b)trans-2-butene c) cis-2-butene d) 1,3-butadiene

write ur question clearly

apply L hospital's rule (differentiate nr& dr)

@ sherwin

dude try 4 bits goa

when limit tends to infinity and zero u can replace trig functions by theta ie sin theta=theta, cos square theta by theta square etc

in this way at numerator u hav x^3+x^2

at denominator u hav modulus of x^3 ( !x^3!) therefore it is -x^3 in case if it had been ^3 it wud be +x^3

therefore the limit is -1 (earlier i mistook it yto ^3 hence i got 1)

Plzz rate if u liked

spring constant of each spring =

frequency =2.68 Hz

is it "1"

apply the eqn 4 continuity ie A1V1=A2V2

apply bernoulli's eqn P1+0.5(rho)v^2+h(Rho)g=a constant

mathematics by ml khanna

@ karthik

from where we can download resonance study materials pdf ?? plzzz say

@ ketan thank u so much ..

do u know from where we can download solutions to mechanics part 1 &2 of arihant physics (dc pandey)

@ karthik

dude from where did u get iit coaching ?? plzz say

options 1,2 &3 r correct

Tension

T= 24 N

2T = kx 48=1000x x=0.048m

what is the trick behind it plzzzz say ???

ok sorry i mistook the pka value that u had written

As pka increases acidic strength decreases

But as Ka increases acidic strength increases hence HF>H2SO4

@ Gargee

i think it is in the order HI>HClO4>HF>H2SO4>CH3COOH

w.k.t HI is the strongest acid , next is HClO4 bcoz it has a chlorine atom which is electro -ve cum it has many oxygen atoms so it is more acidic than sulfuric acid. HF is stronger than H2SO4 bcoz it has lesser hydrogen atoms. IIIly acetic acid is least .

In general as no of hydrogen atoms increases,acidic strength decreases . But u cannot apply this result in case of benzene derivatives.

Plzzz give me ratings if u liked this...

BUT RAJNIKANTH CAN PROVE ANYTHING WHICH IS IMAGINARY

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info