Class 12th

The number of isomers possible for [Pt(en)(NO2)2] is:

Given the masses of various atomic particles m? = 1.0072u, m? = 1.0087u, m? = 0.000548u, m? = 0, m? = 2.0141u, where p = proton, n = neutron, e = electron, v = antineutrino and d = deuteron. Which of the following process is allowed by momentum and energy conservation?

An organic compound (A) (molecular formula C6H12O2 ) was hydrolysed with dil. H2SO4 to give a carboxylic acid (B) and an alcohol (C). ' C ' gives white turbidity immediately when treated with anhydrous ZnCl2 and conc. HCl. The organic compound (A) is:

The value of current i₁ flowing from A to C in the circuit diagram is:

A particle of charge q and mass m is subjected to an electric field E = E₀(1 − ax²) in the x-direction, where a and E₀ are constants. Initially the particle was at rest at x = 0. Other then the initial position the kinetic energy of the particle becomes zero when the distance of the particle from the origin is:

Is SN2 unimolecular or bimolecular?

Identify the operation performed by the circuit given below:

The intermolecular potential energy for the molecules A, B, C and D given below suggest that:

Find the binding energy per neucleon for ¹²⁰₅₀Sn. Mass of proton mₚ = (A)1.00783U, mass of neutron mₙ = (A)1.00867U and mass of tin nucleus msn = 119.902199U. (take 1U = 931MeV)

For a plane electromagnetic wave, the magnetic field at a point x and time t is B(x, t) = [1.2 * 10?sin(0.5 * 10³x + 1.5 * 10¹¹t)k]T
The instantaneous electric field E corresponding to B is: (speed of light c = 3 * 10? ms?¹)