AIEEE 2004

Among the following compounds which can be dehydrated very easily is

Acetyl bromide reacts with excess of CH3MgI followed by treatment with a saturated solution
of NH4Cl given

Which one of the following reduced with zinc and hydrochloric acid to give the corresponding
hydrocarbon?

On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant
solution is

Which of the following undergoes reaction with 50% sodium hydroxide solution to give the
corresponding alcohol and acid?

Amongst the following compounds, the optically active alkane having lowest molecular mass is

Which of the following will have meso-isomer also?

Which one the following does not have sp2 hybridized carbon?

Which of the following is the strongest base ?

Which of the following compound is not chiral?

Consider the acidity of the carboxylic acids:
(a) PhCOOH
(b) o – NO2C6H4COOH
(c) p – NO2C6H4COOH
(d) m – NO2C6H4COOH
Which of the following order is correct?

Rate of the reaction

is fastest when \(Z\) is

The \(IUPAC\) name of the compound is

Identify the correct statements regarding enzymes

Insulin production and its action in human body are responsible for the level of diabetes. This
compound belongs to which of the following categories?

Which base is present in RNA but not in DNA?

The maximum number of 90° angles between bond pair of electrons is observed in

Which one of the following has the regular tetrahedral structure?

(Atomic nos : B = 5, S = 16, Ni = 28, Xe = 54)

The states of hybridization of boron and oxygen atoms in boric acid (H3BO3) are respectively

The correct order of bond angles (smallest first) in H2S, NH3, BF3 and SiH4 is

The bond order in NO is 2.5 while that in NO+ is 3. Which of the following statements is true for these two species?

What is the equilibrium expression for the reaction
P4 (s) + 5O2 \(\leftrightharpoons\) P4O10 (s)?

The equilibrium constant for the reaction N2(g) + O2(g) \(\leftrightharpoons\) 2NO(g) at temperature T is
4 \(\times\) 10-4. The value of Kc for the reaction NO(g) \(\leftrightharpoons\) \(1 \over 2\)N2 (g) + \(1 \over 2\)O2 (g) at the same...

For the reaction, CO(g) + Cl2(g) \(\leftrightharpoons\) COCl2(g) the \({{{K_p}} \over {{K_c}}}\) is equal to :

The half – life of a radioisotope is four hours. If the initial mass of the isotope was 200 g, the
mass remaining after 24 hours undecayed is

In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15
minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is

Consider the following nuclear reactions
\({}_{92}^{238}M \to {}_Y^XN + 2{}_2^4He\)
\({}_Y^XN \to {}_B^AL + 2{\beta ^ + }\)
The number of neutrons in the element L is

The rate equation for the reaction 2A + B \(\to\) C is found to be: rate k[A][B]. The correct
statement in relation to this reaction is that the

The correct order of magnetic moments (spin only values in B.M.) among is :
(Atomic numbers: Mn = 25; Fe = 26, Co =27)

Which one the following has largest number of isomers? (R = alkyl group, en = ethylenediamine)

The coordination number of central metal atom in a complex is determined by :

Which one of the following complexes in an outer orbital complex?

Coordination compound have great importance in biological systems. In this context which of
the following statements is incorrect?

Among the properties (a) reducing (b) oxidising (c) complexing, the set of properties shown by CN– ion
towards metal species is :

Excess of KI reacts with CuSO4 solution and then Na2S2O3 solution is added to it. Which of the statements is incorrect for this reaction?

Cerium (Z = 58) is an important member of the lanthanoids. Which of the following
statements about cerium is incorrect?

Of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one of them?

The \(E_{{M^{3 + }}/{M^{2 + }}}^o\) values for Cr, Mn, Fe and Co are – 0.41, +1.57, + 0.77 and +1.97 V
respectively. For which one of these metals the change in oxidation state form +2 to +3 is
easiest?

The standard e.m.f of a cell, involving one electron change is found to be 0.591 V at 25oC.
The equilibrium constant of the reaction is (F = 96,500 C mol-1: R = 8.314 JK-1 mol-1)

In a hydrogen – oxygen fuel cell, combustion of hydrogen occurs to :

Consider the following Eo values
\(E_{F{e^{3 + }}/F{e^{2 + }}}^o\) = 0.77 V;
\(E_{S{n^{2 + }}/S{n}}^o\) = -0.14 V
Under standard conditions the potential for the reaction
Sn(s) + 2Fe3+(aq) \(\to\) 2Fe2+(aq) + Sn2+(aq) is :

The limiting molar conductivities Λ° for NaCl, KBr and KCl are 126, 152 and 150 S cm2 mol-1 respectively. The Λ° for NaBr is

In a cell that utilises the reaction Zn(s) + 2H+
(aq) \(\to\) Zn2+(aq) + H2(g) addition of H2SO4 to cathode compartment, will

The smog is essentially caused by the presence of :

As the temperature is raised from 20°C to 40°C, the average kinetic energy of neon atoms
changes by a factor of which of the following?

In Van der Waals equation of state of the gas law, the constant ‘b’ is a measure of

The compound formed on heating chlorobenzene with chloral in the presence concentrated
sulphuric acid is

Which one of the following has the minimum boiling point?

The conjugate base of H2PO4- is :

The molar solubility (in ol L-1) of a sparingly soluble salt MX4 is "s". The corresponding solubility product is Ksp. 's' is given in term of Ksp by the relation :