For the elementary reaction M $$\to$$ N, the rate of disappearance of M increases by a factor of 8 upon
doubling the concentration of M. The order of the reaction with respect to M is
Answer
(B)
3
2
Hydrogen peroxide in its reaction with KIO4 and NH2OH respectively, is acting as a
Answer
(A)
reducing agent, oxidising agent
3
For the process
H2O(l) $$\to$$ H2O(g)
at T = 100oC and 1 atmosphere pressure, the correct choice is
Answer
(B)
$$\Delta S$$system > 0 and $$\Delta S$$surroundings < 0
4
Assuming 2s – 2p mixing is NOT operative, the paramagnetic species among the following is
Answer
(C)
C2
5
For the identification of $$\beta$$-naphthol using dye test, it is necessary to use
Answer
(D)
alkaline solution of $$\beta$$-naphthol.
6
Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure.
The correct order of their boiling point is
Answer
(B)
III > II > I
7
The acidic hydrolysis of ether (X) shown below is fastest when
Answer
(C)
two phenyl groups are replaced by two para-methoxyphenyl groups.
8
The major product in the following reaction is
Answer
(D)
9
The product formed in the reaction of SOCl2 with white phosphorus is
Answer
(A)
PCl3
10
Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is
Answer
(C)
2
11
The value of d in cm (shown in the figure), as estimated from Graham's law, is
Answer
(C)
16
12
The experimental value of d is found to be smaller than the estimate obtained using Graham's law. This is due to
Answer
(D)
increased collision frequency of X with the inert gas as compared to that of Y with the inert gas.
13
The product X is
Answer
(A)
14
The correct statement with respect to product Y is
Answer
(C)
It gives a positive iodoform test and is a functional isomer of X.
15
M1, Q and R, respectively, are
Answer
(B)
Ni2+, HCl and KCN
16
Reagent S is
Answer
(D)
KOH
17
Match each coordination compound in List I with an appropriate pair of characteristics from List II and select the correct answer using the code given below the lists.
{en = H2NCH2CH2NH2; atomic numbers : Ti = 22, Cr = 24; Co = 27; Pt = 78}
List I
List II
P.
$$[Cr{(N{H_3})_3}C{l_2}]Cl$$
1.
Paramagnetic and exhibits ionisation isomerism.
Q.
$$[Ti{({H_2}O)_5}Cl]{(N{O_3})_2}$$
2.
Diamagnetic and exhibits cis-trans isomerism.
R.
$$[Pt(en)(N{H_3})Cl]N{O_3}$$
3.
Paramagnetic and exhibits cis-trans isomerism.
S.
$$[Co{(N{H_3})_4}{(N{O_3})_2}]N{O_3}$$
4.
Diamagnetic and exhibits ionisation isomerism.
Answer
(B)
P-3, Q-1, R-4, S-2
18
Match the orbital overlap figures shown in List I with the description given in List II and select the correct answer using the code given below the lists.
Answer
(C)
P-2, Q-3, R-1, S-4
19
Different possible thermal decomposition pathways for peroxyesters are shown below. Match each pathway from List I with an appropriate structure from List II and select the correct answer using the code given below the lists.
Answer
(A)
P-1, Q-3, R-4, S-2
20
Match the four starting materials (P, Q, R, S) given in List I with the corresponding reaction schemes (I, II, III, IV) provided in List II and select the correct answer using the code given below the lists.
