AIPMT 2009

Consider the following reaction :

the product Z is

Consider the following reaction :

the product Z is

HOCH2CH2OH on heating with periodic acid gives

Trichloroacetaldehyde, CCl3CHO reacts with chlorobenzene in presence of sulphuric acid and produces

Propionic acid with Br2/P yields a dibromo product. Its structure would be

Which of the following hormones contains iodine?

The segment of DNA which acts as the instrumental manual for the synthesis of the protein is

What is the dominant intermolecular force or bond that must be overcome in converting liquid CH3OH to a gas?

According to MO theory which of the lists ranks the nitrogen species in terms of increasing bond order ?

In which of the following molecules/ions BF3, NO\(_2^ -\), NH\(_2^ -\) and H2O, the central atom is sp2 hybridised?

The dissociation constants for acetic acid and HCN at 25oC are 1.5 \(\times\) 10\(-\)5 and 4.5 \(\times\) 10\(-\)10 respectively. The equilibrium constant for the equilibrium
CN\(-\) + CH3COOH \(\rightleftharpoons\) HCN + CH3COO$$-$...

In the reaction,
BrO\(_{3(aq)}^ -\) + 5Br\(_{(aq)}^ -\) + 6H+ \(\to\) 3Br2(l) + 3H2O(l).
The rate of appearance of bromine (Br2) is related to rate of disappearance of bromide ions as

For the reaction A + B \(\to\) products, it is observed that
(i)  on doubling the initial concentration of A only, the rate of reaction is also doubled and
(ii)  on doubling the initial concentration of both A and B, there is a change by...

For the reaction, N2 + 3H2 \(\to\) 2NH3, if
\({{d\left[ {N{H_3}} \right]} \over {dt}}\) = 2 \(\times\) 10\(-\)4 mol L\(-\)1 s\(-\)1,
the value of \({{ - d\left[ {{H_2}} \right]} \over {dt}}\) would be

Half-life period of a first order reaction is 1386 seconds. The specific rate constant of the reaction is

Which one of the following is employed as a tranquilizer?

Which of the following does not show optical isomerism?
(en = ethylenediamine)

Out of TiF62\(-\), CoF63\(-\), Cu2Cl2 and NiCl42\(-\) (Z of Ti = 22, Co = 27, Cu = 29, Ni = 28) the colourless species are

Which of the following complex ions is expected to absorb visible light?
(At. nos. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?

Al2O3 is reduced by electrolysis at low potentials and high currents. If 4.0 \(\times\) 104 amperes of current is passed through molten Al2O3 for 6 hours, what mass of aluminium is product? (Assume 100% current efficiency, at mass of Al ...

Given :
(i)   Cu2+ + 2e\(-\) \(\to\) Cu,  Eo = 0.337 V
(ii)  Cu2+ + e\(-\) \(\to\) Cu+,  Eo = 0.153 V
Electrode potential, Eo for the reaction,
Cu+ + e\(-\) \(\to\) Cu,  will be

The equivalent conductance of M/32 solution of a weak monobasic acid is 8.0 mho cm2 and at infinite dilution is 400 mho cm2. The dissociation constant of this acid is

The energy absorbed by each molecule (A2) of a substance is 4.4 \(\times\) 10\(-\)19 J and bond energy per molecule is 4.0 \(\times\) 10\(-\)19 J. The kinetic energy of the molecule per atom will be

Which of the following reactions is an example of nucleophilic substitution reaction?

The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon,

is in the following sequence

Which of the following compounds will exhibit cis-trans (geometrical) isomerism?

Benzene reacts with CH3Cl in the presence of anhydrons AlCl3 to form

Which of the following molecules acts as a Lewis acid?

What is the [OH\(-\)] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2?

The ionization constant of ammonium hydroxide is 1.77 \(\times\) 10\(-\)5 at 298 K. Hydrolysis constant of ammonium chloride is

Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the mixture, nitric acid acts as a/an

Predict the product.

Among the following which is the strongest oxidising agent?

The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence

The straight chain polymer is formed by

Amongst the elements with following electronic configurations, which one of them may have the highest ionisation energy ?

Structures of some common polymers are given. Which one is not correctly presented?

Oxidation numbers of P in PO\(_4^{3 - }\), of S in SO\(_4^{2 - }\) and that of Cr in Cr2O\(_7^{2 - }\) are respectively

Which of the following oxides is not expected to react with sodium hydroxide?

In the case of alkali metals, the covalent character decreases in the order

Copper crystallises in a face-centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm?

Lithium metal crystallises in a body-centred cubic crystal. If the length of the side of the unit cell of lithium is 351 pm, the atomic radius of lithium will be

A 0.0020 m aqueous solution of an ionic compound [Co(NH3)5(NO2)]Cl freezes at \(-\) 0.00732oC. Number of moles of ions which 1 mol of ionic compound produces on being dissolved in water will be (Kf = \(-\)1.86oC/m)

10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be

The IUPAC name of the compound having the formula
CH\(\equiv\)C\(-\)CH\(=\)CH2 is

Maximum number of electrons in a subshell of an atom is determined by the following

Which of the following is not permissible arrangement of electrons in an atom ?

From the following bond energies :
H \(-\) H bond energy   : 431.37 kJ mol\(-\)1
C \(=\) C bond energy   : 606.10 kJ mol\(-\)1
C \(-\) C bond energy   : 336.49 kJ mol\(-\)1
C \(-\) H bond energy   : 410.50 kJ mol\(-\)1
Enthalpy for the rea...

The values of \(\Delta\)H and \(\Delta\)S for the reaction,
C(graphite) + CO2(g) \(\to\)  2CO(g)
are 170 kJ and 170 J K\(-\)1, respectively. This reaction will be spontaneous at