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JEE Advance - Chemistry (2010 - Paper 2 Offline)

1
The species having pyramidal shape is
Answer
(D)
OSF2
2
Silver (atomic weight = 108 g mol-1) has a density of 10.5 g.cm-3. The number of silver atoms on a surface of area 10-12 m2 can be expressed in scientific notation as y $$\times$$ 10x. The value of x is?
Answer
7
3
The hydrogen like species Li2+ is in a spherically symmetric state S1 with one radial node. Upon absorbing light the ion undergoes transition to a state S2. The state S2 has one radial node and its energy is equal to the ground state energy of the hydrogen atom.

The state S1 is :
Answer
(B)
2s
4
The hydrogen like species Li2+ is in a spherically symmetric state S1 with one radial node. Upon absorbing light the ion undergoes transition to a state S2. The state S2 has one radial node and its energy is equal to the ground state energy of the hydrogen atom.

Energy of the state S1 in units of the hydrogen atom ground state energy is:
Answer
(C)
2.25
5
The hydrogen like species Li2+ is in a spherically symmetric state S1 with one radial node. Upon absorbing light the ion undergoes transition to a state S2. The state S2 has one radial node and its energy is equal to the ground state energy of the hydrogen atom.

The orbital angular momentum quantum number of the state S2 is
Answer
(B)
1
6
Among the following, the number of elements showing only one non-zero oxidation state is :
O, Cl, F, N, P, Sn, Tl, Na, Ti
Answer
2
7
Assuming that Hund’s rule is violated, the bond order and magnetic nature of the diatomic molecule B2 is
Answer
(A)
1 and diamagnetic
8

The total number of diprotic acids among the following is:

H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7, H3BO3, H3PO2, H2CrO4 and H2SO3

Answer
6
9
The compounds $\mathbf{P}, \mathbf{Q}$ and $\mathbf{S}$ were separately subjected to nitration using $\mathrm{HNO}_3 / \mathrm{H}_2 \mathrm{SO}_4$ mixture. The major product formed in each case respectively, is :
Answer
(C)
IIT-JEE 2010 Paper 2 Offline Chemistry - Alcohols, Phenols and Ethers Question 1 English Option 3
10
The packing efficiency of the twodimensional square unit cell shown below is IIT-JEE 2010 Paper 2 Offline Chemistry - Solid State Question 1 English
Answer
(D)
$78.54 \%$
11
The complex showing a spin-only magnetic moment of 2.82 B.M. is :
Answer
(B)
$\left[\mathrm{NiCl}_4\right]^{2-}$
12

In the reaction,

IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 2 English

The structure of the product T is :

Answer
(C)
IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 2 English Option 3
13

One mole of an ideal gas is taken from $\mathbf{a}$ to $\mathbf{b}$ along two paths denoted by the solid and the dashed lines as shown in the graph below. If the work done along the solid line path is $W_{\text {s }}$ and that dotted line path is $W_{\mathrm{d}}$, then the integer closest to the ratio $W_{\mathrm{d}} / W_{\mathrm{s}}$ is

IIT-JEE 2010 Paper 2 Offline Chemistry - Thermodynamics Question 1 English
Answer
2
14
Total number of geometrical isomers for the complex $\left[\mathrm{RhCl}(\mathrm{CO})\left(\mathrm{PPh}_3\right)\left(\mathrm{NH}_3\right)\right]$ is ___________.
Answer
3
15
The compounds P and Q respectively are :
Answer
(B)
IIT-JEE 2010 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English Option 2
16
The compound R is :
Answer
(A)
IIT-JEE 2010 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 2 English Option 1
17
The compound S is :
Answer
(D)
IIT-JEE 2010 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 1 English Option 4
18
Match the reactions in Column I with appropriate options in Column II.
Column I Column II
(A)
IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 1 English 1 		(P) Racemic mixture
(B)
IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 1 English 2 		(Q) Addition reaction
(C)
IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 1 English 3 		(R) Substitution reaction
(D)
IIT-JEE 2010 Paper 2 Offline Chemistry - Compounds Containing Nitrogen Question 1 English 4 		(S) Coupling reaction
Answer
(D)
(A)→(R), (S); (B)→(T); (C)→ (P), (Q); (D)→(R)
19

All the compounds listed in Column I react with water. Match the result of the respective reactions with the appropriate options listed in Column II.

Column I Column II
(A) (CH3)2SiCl2 (P) Hydrogen halide formation
(B) XeF4 (Q) Redox reaction
(C) Cl2 (R) Reacts with glass
(D) VCl5 (S) Polymerisation
(T) O2 formation
Answer
(B)
(A)→(P), (S); (B)→(P), (Q), (R), (T); (C)→(P), (Q); (D)→(P)