mohit

Q.1 Calculate the extent of hydrolysis of 0.005M K2CrO4.If K2=5*10^-7 for H2CrO4.(It is essentially strong for first ionisation).

I want to have a deep insigth to my problem i.e. I know that bonds between atoms(of different or same elements)to be formed are based on no. of electrons less in octet or duplet(say O2, each O atom has two electrons less in octet thus forms two bonds).But...

The sum of the co-efficients in the expansion of (1 - 2x +5x^2)^n is a and the sum of the co-efficients in the expansion of (1 +x)^2n is b.Then (A) a=b (B) (x-a)^2 + (x-b)^2 =0 (C) (sin a)^2 + (cos b)^2 =1 (D) ab=1 Ans. A,B,C But How???

when any block slides down a smooth incline which is unfixed then the incline moves back.WHY??

how much work is done in bringing three electrons , which are intially a great disance apart to how fats will it be moving then it is at distance ?

500g urea aq. Sol. Has mole fraction 0.2 what is molality of sol.

a fan rotates speed of 600rev per min the power is cut it stopped after 60 rev find time

two mass 10 kg and 20 kg are connected with a massless string. a force pf 200 N is acting on the mass 20 kg . the acceleration of 10 kg is 12m/s^2 then the acceleration of 20 kg mass is

Q: A block A of mass 0.5 kg can slide on a frictionless incline of angle 30o and length 0.8 m kept inside an elevator going up with uniform velocity 2m/s. Find the time taken by the block to slide down the length of the incline if it is released from the...

A ball is thrown verically upwards from the top of the tower with a speed of 100 m/s. It strikes the pond near the base of the towerafter 25 second. The height of tower is

AgNO3+NaCL=AgCL+NaNO3 is not a redox reaction but Cu+2AgNO3=2Ag+Cu(NO3)2 is a redox reaction.explain

the potential energy of a spring..when stretched by 4 cm is u..when stretched by 20 cm it will ?

Conc sulphuric acid has a density 1.9gm\mland is 99%h2so4by weight.calculate the molarity of h2so4 in this acid

1.produce decisions taking a lot of time 2. not free from corruption 3. money and muscle power have an influence on politics. 4. criminal connections also a demerit of democracy

least number between the given range =36; to find the maximum no. divide 395 by 6 ;we get remainder to be 5 ;Therefore 395-5 will purely divided by 6 and also be the maximum no. in the given range Also total nos.:390=36+(n-1)6 calculate for n ; then apply...

slope of the line will be same to that of the given line i.e. 3 Now let the eq. be y -3x = m (where m is any parameter) this line passes through (5,1) therfore satisfying it we get m = -14 thus, eq. of required line is y =3x -14

(x/25)+6 =18 x =12*25

There r 12 months in 1 year .Therefore using unitary method 12*7 = 84 months in 7 years Also 1/2 year means 6 months .Thus total of 84+6 = 90 months in 7& 1/2 years

May 26 is my birth day

two mass 10 kg and 20 kg are connected with a massless string. a force pf 200 N is acting on the mass 20 kg . the acceleration of 10 kg is 12m/s^2 then the acceleration of 20 kg mass is

14792

Residance phone no