AIPMT 2004

Which one of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

Which one of the following can be oxidised to the corresponding carbonyl compound?

The \(-\) OH group of an alcohol or the \(-\) COOH group of a carboxylic acid can be replaced by \(-\) Cl using

The correct statement in respect of protein haemoglobin is that it

Number of chiral carbons in \(\beta\)-\(D\)-(+) glucose is

The helical structure of protein is stablised by

Which of the following structures represents the peptide chain?

The hormone that helps in the conversion of glucose to glycogen is

A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid?

H2O is dipolar, whereas BeF2 is not. It is because

In BrF3 molecule, the lone pairs occupy equatorial positions to minimize

In a regular octahedral molecule, MX6 the number of X \(-\) M \(-\) X bonds at 180o is

Among the following, the pair in which the two species are not isostructural is

The rate of a first order reaction is 1.5 \(\times\) 10\(-\)2 mol L\(-\)1 min\(-\)1 at 0.5 M concentration of the reactant. The half-life of the reaction is

Which of the following forms cationic micelles above certain concentration?

Chloropicrin is obtained by the reaction of

CN\(-\) is a strong field ligand. This is due to the fact that

Which of the following coordination compounds would exhibit optical isomerism?

Which of the following does not have a metal carbon bond?

In an octahedral structure, the pair of \(d\) orbitals involved in d2sp3 hybridisation is

Considering H2O as a weak field ligand, the number of unpaired electrons in [Mn(H2O)6]2+ will be (atomic number of Mn = 25)

Among [Ni(CO)4], [Ni(CN)4]2\(-\), [NiCl4]2\(-\) species, the hybridisation states at the Ni atom are, respectively
[Atomic number of Ni = 28]

Which of the following is considered to be an anticancer species?

lanthanoids are

Among the following series of transition metal ions, the one where all metal ions have 3d2 electronic configuration is
[At. Nos. Ti = 22, V = 23, Cr = 24, Mn = 25]

The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25oC. The equilibrium constant of the reaction would be

Which of the following is least reactive in a nucleophilic sibstitution reaction?

Reaction of HBr with propene in the presence of peroxide gives

Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt)?

The rapid change of pH near the stoichiometric point of an acid-base titration is the basis of indicator detection. pH of the solution is related to ratio of the concentrations of the conjugate acid (HIn) and base (In\(-\)) forms of the ind...

The solubility product of a sparingly soluble salt AX2 is 3.2 \(\times\) 10\(-\)11. Its solubility (in moles/L) is

The radioactive isotope \({}_{27}^{60}\)Co which is used in the treatment of cancer can be made by (n.p) reaction. For this reaction the tarfet nucleus is

In a reaction of aniline a coloured product C was obtained.

The structure of C would be

Which one of the following statements about the zeolite is false?

Among K, Ca, Fe and Zn, the element which can from more than one binary compound with chlorine is

Ionic radii are

Which one of the following is a chain growth polymer?

Which is the best description of the behaviour of bromine in the reaction given below?
H2O + Br2 \(\to\) HOBr + HBr

A solid compound X on heating gives CO2 gas and a residue. The residue mixed with water forms Y. On passing an excess of CO2 through Y in water, a clear solution Z is obtained. On boiling Z, compound X is reformed. The compound X is

A compound formed by elements X and Y
crystallizes in a cubic structure in which the X
atoms are at the corners of a cube and the Y
atoms are at the face-centers. The formula of the
compound is :-

The maximum number of molecules is present in

The molecular formula of diphenyl methane,

How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom ?

The frequency of radiation emitted when the electron falls from n = 4 to n = 1 in hydrogen atom will be (Given ionization energy of H = 2.18 \(\times\) 10\(-\)18 J atom\(-\)1 and h = 6.625 \(\times\) 10\(-\)34 J s)

The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are \(-\) 382.64 kJ mol\(-\)1 and \(-\) 145.6 kJ mol\(-\)1, respectively. Standard Gibb's energy change for the same reaction at 298 K is

If the bond energies of H \(-\) H, Br \(-\) Br, and H \(-\) Br are 433, 192 and 364 kJ mol\(-\)1 respectively, the \(\Delta\)Ho for the reaction H2(g) + Br2(g) \(\to\) 2HBr(g) is

The work done during the expansion of a gas from a volume of 4 dm3 to 6 dm3 against a constant external pressure of 3 atm is (1 L atm = 101.32 J)

Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is