Sulphur does not exist as S2 molecule because
it is less electronegative
it is not able to constitute bonds
it has ability to exhibit catenation
of tendency to show variable oxidation states
Liquor ammonia is
ammonium hydroxide
liquified ammonia gas
concentrated solution of NH3 in water
a solution of NH3 in alcohol
The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is :
20
30
40
10
Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)?
H2O < H2S < H2Se < H2Te < H2Po
H2Po < H2Te < H2Se < H2S < H2S
H2Se < H2Te <H2Po < H2O < H2S
H2S < H2O < H2Se < H2Te <H2Po
B.
H2Po < H2Te < H2Se < H2S < H2S
On gooing down the group thermal stability order for H2E decreases because H-E bond energy decreases.
Order of stability would be:-
H2Po < H2Te < H2Se < H2S < H2S
Identify the incorrect statement related to PCl5 from the following:
Two axial P–Cl bonds make an angle of 180° with each other
Axial P–Cl bonds are longer than equatorial P–Cl bonds
PCl5 molecules in non-reactive
Three equatorial P–Cl bonds make an angle of 120° with each other
Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code:
Column-I | Column- II |
(a) XeF4 | (i) Pyramidal |
(b) XeF6 | (ii) Square planar |
(c) XeOF4 | (iii) Distorted octahedral |
(d) XeO3 | (iv) Square pyramidal |
Code:
(a) (b) (c) (d)
(ii) (iii) (iv) (i)
(a) (b) (c) (d)
(ii) (iv) (i) (iv)
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
(a) (b) (c) (d)
(i) (ii) (iii) (iv)