Decreasingorderof dipolemomentofthe followingcompoundsis-
1)
2)
3) 

InPO₄^3–,the formal charge one ach oxygen atom and the P–O bond order respectively are-

Resonance is not shown by-

In which of the following compounds resonance does not occurs-
a)H₂O
b)SiO₂
c)SO₃
d)CO₂ Correct answer is–

Which one is the most resonance stabilized amongest the following-

Outofthetwocompoundsshown below,the vapour pressure of (B) at a particular temperatureisexpectedtobe:
and 

The equations of the sides of the Square for which (3, 4), (1, –1) are the end points of a diagonal are

tan (x) = (m1-m2)/(1+m1m2). this gives the relationship between the slope and angle between the two line.

The figure shows energy levels of a certain atom, when the system moves from level 2E to E, a photon of wavelength $\lambda$ is emitted. The wavelength of photon produced during its transition from level 4/3 E to E level is:

An  α-Particle of energy 5 Mev is scattered through 180 by a fixed uranium nuclear The closest distance is in the order of:

Species having zero dipole moment:

Which of the following process are associated with change of hybridization of the underlined compound?
1) Al(OH)₃ ppt. dissolved in NaOH
2) B2H₆ is dissolved in THF
3) SiF₄ vapour is passed through liq. HF
4)Solidification PCl₅ vapour Correct answer is-

The shapes of XeF₄,XeF₅–and SnCl₂ are-

Linear structure is assumed by-
I)NCO^–
II) CS₂
III) NO₂
IV)Solid BeH

Which of the following set is not correct-

The As F₅ molecule is trigonal bipyramidal. The hybrid orbitals used by the As atoms for bonding-

In [Fe(CO)₅], hybrid is at ion state and number of co-ordinate bonds are-