Messages posted by payal1spark

its rite ashish

but how...how do we decide? whch is 0 position?

If a chemical reaction is carried out in a fuel cell. The maximum amount of useful work th

If a chemical reaction is carried out in a fuel cell. The maximum amount of useful work that can be obtained from the cell is

ans is $\Delta\\$ G/ $\Delta\\$ H

A complex of iron and cyanide is 100% ionised at 1 m. If its elevation in B.P. is 2.08°. (

A complex of iron and cyanide is 100% ionised at 1 m. If its elevation in B.P. is 2.08°. (K_b = 0.52° mol^-1 kg) Then the complex is

	1.	K₃[Fe(CN)₆]

	2.	[Fe(CN)₂]

	3.	K₄[Fe(CN)₆]

	4.	[Fe(CN)₄]

The IUPAC name of the given compound is

i dont get y r*sqr becums r*sqr/2
it shud becum r sqr/4 accrdin to me

resonance doubt

A metal wire of linear mass density of 9.8 g/m is stretched with a tension of 10 kg-wt between two rigid supports 1 metre apart. The wire passes at its middle point between the poles of a permanent magnet and it vibrates in resonance when carrying an alternating current of frequency n. The frequency n of the alternating source is

ans is 50 hz

A magnetic needle lying prllel 2 a magnetic field reqs W units of work to turn it t

A magnetic needle lying parallel to a magnetic field requires W units of work to turn it through 60°. The torque needed to maintain the needle in this position will be

ans root3 W

how?whts the formula?

The length of a given cylindrical wire is increased by 100%. Due to the consequent decreas

The length of a given cylindrical wire is increased by 100%. Due to the consequent decrease in diameter the change in the resistance of the wire will be

ans 300%

whts EDTA?

whts so spl abt it? wht qstns can v expect based on it?

THNKS bigghe...tht was exactly wat i was lookin for...

does ny1 know wht is lebnitz rule of integration or differentiation...whtevr it is?

righttt...i forgot tht it was diff in no of GASEOUS moles...thnks

i think the angles hvnt got to do nythin...
its 1/speed of light in ice i.e. 3 x 10*8 x 3/4
so 1.33/3 x 10*8 gives 4.43 nanosec

In an oscillating LC circuit the maximum charge on the capacitor is Q. The charge on the c

In an oscillating LC circuit the maximum charge on the capacitor is Q. The charge on the capacitor when the energy is stored equally between the electric and magnetic field is?

ans is q/root 2

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required t

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the first excited state of Li⁺⁺ is? ans is 30.6 eV

how?

does ny1 know the formula to find tot no. of imgs by plane mirrors at an angle?

To get three images of a single object, one should have two plane mirrors at an angle of?

plz tell me how to decide?

Which of the following compound is most basic in aqueous solution?

.

	2.

	3.

	4.

Number of Nodal plane in 4p suborbit will be

guys...i m sorry this is a very trivial qstn..but i seem to hv 4gottn the formula..do u know wat it is separately for nodal plane n spherical node?

(n-l-1) for nodal planes is it?

(H - E) is maximum at a given temperature in case of

PCl₅(g) PCl₃(g) + Cl₂(g)

	2.	CaCO₃(s) CaO(s) + CO₂(g)

	3.	NH₄HS(s) NH₃(g) + H₂S(g)

	4.	N₂(g) + O₂(g) 2NO(g)

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