MEDIUM
Earn 100

Which theory posits that individuals strive to maintain consistency among their beliefs, attitudes, and behaviors?

50% studentsanswered this correctly

Important Questions on Coordination Compounds

HARD
Show using a proper diagram how unpolarized light can be linearly polarised by reflection from a transparent glass surface.
EASY
The polarising angle for transparent medium is θ, v is the speed of light in that medium. Then the relation between θ and v is (c= velocity of light in air)
EASY
When an unpolarized light of intensity I0 is incident on a polarizing sheet, the intensity of light which does not get transmitted is
EASY
Name the phenomenon which illustrate the particle nature of light.
EASY
Explain [Co(NH3)6]3+ is an inner orbital complex whereas [Ni(NH3)6]2+ is an outer orbital complex.
EASY
Unpolarized light of intensity I passes through an ideal polariser A. Another identical polariser B is placed behind A. The intensity of light beyond B is found to be I2. Now another identical polariser C is placed between A and B. The intensity beyond B is now found to be I8 . The angle between polariser A and C is
MEDIUM
On the basis of valence bond theory explain the oxidation state, hybridisation, geometry and magnetic nature of metal in complex CoF63-.
MEDIUM
FeCN64- and FeH2O62+ are of different colours in dilute solutions. Why?
EASY
Out of [CoF6]-3 and [Co(en)3]3+ which complex compound is paramagnetic.
EASY
The correct order of the stoichiometries of AgCl formed when AgNO3 is treated in excess with the complexes: CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3, respectively, is:
EASY
Out of [CoF6]-3 and [Co(en)3]3+, which complex compound is inner orbital complex.
EASY
If the light is polarized by reflection, then the angle between reflected and refracted light is
EASY
Out of [CoF6]-3 and [Co(en)3]3+, which complex compound is high spin complex.
MEDIUM
Complete removal of both the axial ligands (along the z-axis ) from an octahedral complex leads to which of the following splitting patterns? (relative orbital energies not on scale).
EASY
Explain Werner's theory of coordination compounds with suitable examples.
MEDIUM
Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25oC?
EASY
Photoelectric effect experiments are performed using three different metal plates p, q and r having work functions Qs=2.0 eV, Qq=2.5 eV and Qr=3.0 eV, are respectively. A light beam containing wavelengths of 550 nm, 450 nm and 350 nm with equal intensities illuminates each of the plates. The correct I-V graph for the experiment is (take hc=1240 eV nm)
EASY
A silver ball of radius 4.8 cm is suspended by a thread in a vacuum chamber. UV light of wavelength 200 nm is incident on the ball for some time during which total energy of 1×107 J falls on the surface. Assuming that on an average, one out of 103 photons incident on the ball is able to eject an electron, then the potential of the sphere will be