ISAT Answers

Will you please provide here sample paper for ISAT Entrance Test of Indian Institute of Space Science and Technology (IIST) with answers?

[Rajkumar Agarwal]

As you want I am here giving you sample paper for ISAT Entrance Test of Indian Institute of Space Science and Technology (IIST) with answers.

Sample paper :

26. The approximate standard enthalpies of
formation-----
Ans : DH (octane) is more negative than DH
(methanol)
Sol: Combustion of C8H8 involves more
number of carbons and hydrogens
compared to CH4O

The reduction potentials of M2+ / M follow the
trend------
Ans : V < Fe < Ni < Cu
Sol: o
M / M2 E + for V = - 1.18 V
Fe = - 0.44 V
Ni = - 0.25 V
Cu = 0.34 V

In the conversion of dinitrogen to hydrazine, -----
Ans : 4 and 4
Sol: N2 + 4H+ + 4e- ® N2H4

The compounds that form stable hydrates are-----
Ans : II and IV
Sol: II is Indane-1,2,3-trione. It forms a stable
hydrate known as ninhydrin which is
stabilized by intramolecular hydrogen
bonding. IV is chloral which also forms
stable chloral hydrate


The stability order of the following carbocation is-
----
Ans : II > III > I > IV
Sol: II is the most stable carbocation because
positive charge is at allylic position with
respect to two double bonds.
IV is the least stable carbocation as it is
Antiaromatic

Here is the attachment
.
ISAT solved paper