AIEEE 2005 Chemistry Question Paper Mock Test

Which of the following oxides is amphoteric in character?

Which one of the following species is diamagnetic in nature?

If $\alpha$ is the degree of dissociation of ${\text{Na}}_2{\text{SO}}_4$, the van't Hoff's factor ($i$) used for calculating the molecular mass is:

The oxidation state of $\text{Cr}$ in $[\text{Cr}({\text{NH}}_3{)}_4{\text{Cl}}_2{]}^{+}$ is:

Hydrogen bomb is based on the principle of:

An ionic compound has a unit cell consisting of $A$ ions at the corners of a cube and $B$ ions on the centres of the faces of the cube. The empirical formula for this compound would be:

For a spontaneous reaction the $\Delta G^{\circ }$, equilibrium constant ($K$) and $E_{\text{cell}}^{\circ }$ will be respectively:

Which of the following is a polyamide?

Which one of the following types of drugs reduces fever?

Due to the presence of an unpaired electron, free radicals are:

Lattice energy of an ionic compound depends upon:

The highest electrical conductivity of the following aqueous solutions is of:

Aluminium oxide may be electrolysed at $1000^{\circ }\text{C}$ to furnish aluminium metal (Atomic mass $=27\text{amu}$; $1\text{Faraday}=96,500\text{Coulombs}$). The cathode reaction is:
$${\text{Al}}^{3+}+3e^{-}\to \text{Al}$$
To prepare $5.12\text{kg}$ of aluminium metal by this method would require:

Consider an endothermic reaction, $X\to Y$ with the activation energies $E_b$ and $E_f$ for the backward and forward reactions, respectively. In general:

Consider the reaction: ${\text{N}}_2(g)+3{\text{H}}_2(g)\to 2{\text{NH}}_3(g)$ carried out at constant temperature and pressure. If $\Delta H$ and $\Delta U$ are the enthalpy and internal energy changes for the reaction, which of the following expressions is true?

Which one of the following statements is NOT true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?

The volume of a colloidal particle, $V_C$ as compared to the volume of a solute particle in a true solution $V_S$, could be:

The solubility product of a salt having general formula ${\text{MX}}_2$, in water is $4\times 10^{-12}$. The concentration of ${\text{M}}^{2+}$ ions in the aqueous solution of the salt is:

Benzene and toluene form nearly ideal solutions. At $20^{\circ }\text{C}$, the vapour pressure of benzene is $75\text{torr}$ and that of toluene is $22\text{torr}$. The partial vapour pressure of benzene at $20^{\circ }\text{C}$ for a solution containing $78\text{g}$ of benzene and $46\text{g}$ of toluene in torr is:

The exothermic formation of ${\text{ClF}}_3$ is represented by the equation:
$${\text{Cl}}_2(g)+3{\text{F}}_2(g)\rightleftharpoons 2{\text{ClF}}_3(g);{\Delta }_{r}H=-329\text{kJ}$$
Which of the following will increase the quantity of ${\text{ClF}}_3$ in an equilibrium mixture?

Two solutions of a substance (non-electrolyte) are mixed in the following manner: $480\text{mL}$ of $1.5\text{M}$ first solution $+520\text{mL}$ of $1.2\text{M}$ second solution. What is the molarity of the final mixture?

For the reaction: $2{\text{NO}}_2(g)\rightleftharpoons 2\text{NO}(g)+{\text{O}}_2(g)$, it is found that at $184^{\circ }\text{C}$, $K_c=1.8\times 10^{-6}$. When $K_p$ and $K_c$ are compared at this temperature, it is found that:

Hydrogen ion concentration in $\text{mol/L}$ in a solution of $\text{pH}=5.4$ will be:

A reaction involving two different reactants can never be:

If we consider that $1/6$ in place of $1/12$ mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will:

In a multi-electron atom, which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic and electric fields?(a) $n=1,l=0,m=0$ (b) $n=2,l=0,m=0$ (c) $n=2,l=1,m=1$ (d) $n=3,l=2,m=1$ (e) $n=3,l=2,m=0$

During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are:

Calculate ${\Lambda }_{\text{HOAc}}^{\infty }$ using the following molar conductances at infinite dilution at $25^{\circ }\text{C}$:

A schematic plot of $\ln K_{eq}$ versus inverse of temperature ($1/T$) for a reaction is shown below. The reaction must be:

The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectively. Which of the following statements is NOT correct?

Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point?

Heating a mixture of ${\text{Cu}}_2\text{O}$ and ${\text{Cu}}_2\text{S}$ will give:

The molecular shapes of ${\text{SF}}_4$, ${\text{CF}}_4$ and ${\text{XeF}}_4$ are:

The number and type of bonds between two carbon atoms in calcium carbide are:

The oxidation state of chromium in the final product formed by the reaction between $\text{KI}$ and acidified potassium dichromate solution is:

The number of hydrogen atom(s) attached to phosphorus atom in hypophosphorous acid is:

What is the conjugate base of ${\text{OH}}^{-}$?

The correct order of the thermal stability of hydrogen halides ($\text{H}-\text{X}$) is:

Heating an aqueous solution of aluminium chloride to dryness will give:

Calomel (${\text{Hg}}_2{\text{Cl}}_2$) on reaction with ammonium hydroxide gives:

In which of the following arrangements the order is NOT according to the property indicated against it?

In silicon dioxide:

Of the following sets which one does NOT contain isoelectronic species?

The lanthanide contraction is responsible for the fact that:

The IUPAC name of the coordination compound ${\text{K}}_3[\text{Fe}(\text{CN}{)}_6]$ is:

Which of the following compounds shows optical isomerism?

Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?

$2$ -methylbutane on reacting with bromine in the presence of sunlight gives mainly:

The photon of hard gamma radiation knocks a proton out of ${}_{12}^{24}\text{Mg}$ nucleus to form:

The best reagent to convert pent-$3$ -en-$2$ -ol into pent-$3$ -en-$2$ -one is:

Tertiary alkyl halides are practically inert to substitution by $S_{N}2$ mechanism because of:

In both DNA and RNA, heterocyclic base and phosphate ester linkages are at:

Reaction of one molecule of $\text{HBr}$ with one molecule of $1,3$ -butadiene at $40^{\circ }\text{C}$ gives predominantly:

Among the following acids which has the lowest $\text{p}{K}_a$ value?

The decreasing order of nucleophilicity among the following nucleophiles is:

Which one of the following methods is neither meant for the synthesis nor for separation of amines?

Which of the following is a fully fluorinated polymer?

Of the five isomeric hexanes, the isomer which can give only two monochlorinated compounds is:

Alkyl halides react with dialkyl copper reagents (Gilman reagents) to give:

Acid catalyzed hydration of alkenes except ethene leads to the formation of:

Amongst the following the most basic compound is:

Which type of isomerism is shown by $2,3$ -dichlorobutane?

The reaction is fastest when $X$ is:

Elimination of bromine from $2$ -bromobutane results in the formation of:

Equimolar solutions in the same solvent have:

Which of the following statements in relation to the hydrogen atom is correct?

The structure of diborane (${\text{B}}_2{\text{H}}_6$) contains:

The value of the 'spin only' magnetic moment for one of the following configurations is $2.84\text{BM}$. The correct one is:

Which of the following factors may be regarded as the main cause of lanthanide contraction?

Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as:

p-cresol reacts with chloroform in alkaline medium to give compound A, which adds $\text{HCN}$ to form compound B. The latter on acidic hydrolysis gives a chiral carboxylic acid. The structure of this carboxylic acid is:

An organic compound having molecular mass $60$ contains $C=20\%,H=6.67\%,N=46.67\%$, and rest Oxygen. On heating, it gives ${\text{NH}}_3$ along with a solid residue that gives a violet color with alkaline copper sulfate. The compound is:

If the bond dissociation energies of $\text{XY},{\text{X}}_2$ and ${\text{Y}}_2$ are in the ratio $1:1:0.5$ and ${\Delta }_{f}H$ for $\text{XY}$ is $-200\text{kJ/mol}$, the bond dissociation energy of ${\text{X}}_2$ will be:

$t_{1/4}$ is the time taken for the concentration of a reactant to drop to $3/4$ of its initial value. If the rate constant is $K$, $t_{1/4}$ is:

Solid ${\text{NH}}_4\text{HS}$ is placed in a flask containing ${\text{NH}}_3$ at $0.50\text{atm}$. It decomposes into ${\text{NH}}_3$ and ${\text{H}}_2\text{S}$. At equilibrium, total pressure is $0.84\text{atm}$. $K_p$ is: