 |
IIT-JEE-Chemistry-Screening-2003
SCREENING
_______________________________________________________________
1. Among the following the molecule with the highest dipole moment is :
(a) CH3CI
(b) CH2CI2
(c) CHCI3
(d) CCI4
2. Which of the following are isoelectronic and isostructural?
NO3-, C O32-, CI O3-, SO3
(a) N O3-, C O32-
(b) SO3, N O3-
(c) CI O3-, C O32-
(d) C O32-, SO3
3.
The product A will be
4. [X] + H2SO4 → [Y] a colourless gas with irritating smell
[Y] + K2CrO7 + H2SO4 ® green solution
[X] and [Y] is:
(a) S O32-, SO2
(b) CI-, HCI
(c) S2-, H2S
(d) C O3-, CO2
5. For H3PO3 and H3PO4 the correct choice is:
(a) H3PO3 is dibasic and reducing
(b) H3PO3 is dibasic and non-reducing
(c) H3PO4 is tribasic and reducing
(d) H3PO3 is tribasic and non-reducing
6. When MnO2 is fused with KOH, a coloured compound is formed, the product and its colour is :
(a) K2MnO4, purple green
(b) KMnO4, purple
(c) Mn2O3, brown
(d) Mn3O4 black
|
Next >>
|
 |
|
