AIEEE 2006

The electrophile involved in the above reaction is

Phenyl magnesium bromide reacts with methanol to give

The structure of the compound that gives a tribromo derivative on treatment with bromine water is

HBr reacts with CH2 = CH – OCH3 under anhydrous conditions at room temperature to give

Among the following the one that gives positives iodoform test upon reaction with \({I_2}\) and \(NaOH\) is

The increasing order of the rate of HCN addition to compounds A – D is
(A) HCHO (B) CH3COCH3
(C) PhCOCH3 (D) PhCOPh

The correct order of increasing acid strength of the compounds

CH3Br + Nu- \(\to\) CH3 - Nu + Br- The decreasing order of the rate of the above reaction with nucleophiles (Nu–) A to D is
[Nu– = (A) PhO–, (B) AcO–, (C) HO–, (D) CH3O–]

The increasing order of stability of the following free radicals is

The \(IUPAC\) name of the compound shown below is :

Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of
2-fluoroethanol is

The term anomers of glucose refers to

The pyrimidine bases present in DNA are

The decreasing values of bond angles from NH3 (106o) to SbH3 (91o
) down group-15 of the periodic table is due to

Which of the following molecules/ions does not contain unpaired electrons?

In which of the following molecules/ions are all the bonds not equal?

Phosphorus pentachloride dissociates as follows, in a closed reaction vessel
PCl5 (g) \(\leftrightharpoons\) PCl3 (g) + Cl2 (g)
If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of PCl5 is x, the
part...

The equilibrium constant for the reaction
SO3 (g) \(\leftrightharpoons\) SO2 (g) + \(1 \over 2\) O2 (g)
is Kc = 4.9 \(\times\) 10–2. The value of Kc for the reaction
2SO2 (g) + O2 (g) \(\leftrightharpoons\) 2SO3 (g) will be :

The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr:
NO(g) + Br2 (g) \(\leftrightharpoons\) NOBr2 (g)
NOBr2 (g) + NO (g) \(\to\) 2NOBr (g)
If the second step is the rate determining step, the order of t...

Rate of a reaction can be expressed by Arrhenius equation as:
\($k = A\,{e^{ - E/RT}}\)$
In this equation, E represents

A reaction was found to be second order with respect to the concentration of carbon monoxide. If the
concentration of carbon monoxide is doubled, with everything else kept the same, the rate of reaction
will

In the transformation of \({}_{92}^{238}U\) to \({}_{92}^{234}U\), if one emission is an α-particle, what should be the other
emission(s)?

How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral
complex with a Ca2+ ion?

In Fe(CO)5, the Fe – C bond possesses :

The IUPAC name for the complex [Co(NO2)(NH3)5]Cl2 is

Nickel (Z = 28) combines with a uninegative monodentate ligand X– to form a paramagnetic complex [NiX4]2− . The number of unpaired electron(s) in the nickel and geometry of this complex ion are,
respectively

The “spin-only” magnetic moment [in units of Bohr magneton, (µB)] of Ni2+ in aqueous solution would
be : (Atomic number of Ni = 28)

A metal, \(M\) forms chlorides in its \(+2\) and \(+4\) oxidation states. Which of the following statements about these chlorides is correct?

Lanthanoid contraction is caused due to :

The molar conductivities \(\wedge _{NaOAc}^o\) and \(\wedge _{HCl}^o\) and at infinite dilution in water at 25oC are 91.0 and 426.2 Scm2/mol respectively. To calculate \(\wedge _{HOAc}^o\) , the additional value required is

Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100\(\Omega\).
The conductivity of this solution is 1.29 S m–1. Resistance of the same cell when filled with 0.2 M of
the same solution is...

Given the data at 25oC,
Ag + I- \(\to\) AgI + e- , Eo = 0.152 V
Ag \(\to\) Ag+ + e-, Eo = -0.800 V
What is the value of log Ksp for AgI? (2.303 RT/F = 0.059 V)

The structure of the major product formed in the following reaction

is

Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces

Fluorobenzene (C6H5F) can be synthesized in the laboratory

The alkene formed as a major product in the above elimination reaction is

What products are expected from the disproportionation reaction of hypochlorous acid?

Which of the following statements is true?

Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the
halogens are given. Which of these statements gives the correct picture?

The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is :

Which of the following chemical reactions depicts the oxidizing behaviour of H2SO4?

The ionic mobility of alkali metal ions in aqueous solution is maximum for :

Total volume of atoms present in a face-centre cubic unit cell of a metal is (r is atomic radius) :

18 g of glucose (C6H12O6) is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at 100oC is

Among the following mixtures, dipole-dipole as the major interaction, is present in

How many moles of magnesium phosphate Mg3(PO4)2 will contain 0.25 mole of oxygen atoms?

Density of a 2.05M solution of acetic acid in water is 1.02 g/mL The molality of the solution is

Uncertainty in the position of an electron (mass = 9.1 \(\times\) 10-31 kg) moving with a velocity 300 ms-1, accurate upto 0.001% will be (h = 6.63 \(\times\) 10-34 Js)

Which of the following sets of ions represents a collection of isoelectronic species?

According to Bohr's theory, the angular momentum of an electron in 5th orbit is