IIT-JEE 2006

When benzene sulphonic acid and $p$-nitrophenol are treated with $\mathrm{NaHCO}_3$, the gases released respectively are

(I) 1,2-Dihydroxybenzene
(II) 1,3-Dihydroxybenzene
(III) 1,4-Dihydroxybenzene
(IV) Hydroxy benzene
The increasing order of boiling points of the above mentioned alcohols is

Which of the following reactants on reaction with conc. NaOH followed by acidification gives the following lactone as the only product?

The smallest ketone and its next homologue are reacted with $\mathrm{NH}_2 \mathrm{OH}$ to form oxime.

What are N and M?

$$ \begin{aligned} & \mathrm{Ag}^{+}+\mathrm{NH}_3 \quad\left[\mathrm{Ag}\left(\mathrm{NH}_3\right)\right]^{+} \\ & k_1=3.5 \times 10^{-3} \\ & {\left[\mathrm{Ag}\left(\mathrm{NH}_3\right]^{+}+\mathrm{NH}_3 \quad\left[\mathrm{Ag}\left(\math...

\(\mathrm{N}_2+3 \mathrm{H}_2 \to 2 \mathrm{NH}_3\)
Which is the correct statement if $\mathrm{N}_2$ is added at equilibrium condition?

Which of the following option is correct?

What should be the age of fossil for meaningful determination of its age?

A nuclear explosion has taken place leading to increase in concentration of ${ }^{14} \mathrm{C}$ in nearby areas. ${ }^{14} \mathrm{C}$ concentration is $\mathrm{C}_1$ in nearby areas and $C_2$ in areas far away. If the age of the fossil i...

\(\text { Match Column I with Column II : }\)
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$\mathrm{CH}_3 \mathrm{NH}_2+\mathrm{CHCl}_3+\mathrm{KOH} \rightarrow$ Nitrogen containing compound $+\mathrm{KCl}+\mathrm{H}_2 \mathrm{O}$.
Nitrogen containing compound is :

Which is the rate determining step in Hofmann bromamide degradation?

What are the constituent amines formed when the mixture of (i) and (ii) undergoes Hofmann bromamide degradation?

How can the conversion of (i) to (ii) be brought about?

The IUPAC names of \(\mathbf{A}\) and \(\mathbf{B}\) are

The hybridisation of $A$ and $B$ are :

Predict the magnetic nature of $\mathbf{A}$ and $\mathbf{B}$.

If the bond length of CO bond in carbon monoxide is $1.128 \mathop {\rm{A}}\limits^{\rm{o}}$, then what is the value of CO bond length in $\mathrm{Fe}(\mathrm{CO})_5$?

We have taken a saturated solution of AgBr. Ksp of AgBr is 12 \(\times\) 10-14. If 10-7 mole of AgNO3 are added to 1 litre of this solution find conductivity (specific conductance) of this solution in terms of 10-7 S m-1 units. Given, molar...

$$ \begin{array}{r} 2 \mathrm{Ag}^{+}+\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6+\mathrm{H}_2 \mathrm{O} \rightarrow 2 \mathrm{Ag}(\mathrm{~s})+\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_7 +2 \mathrm{H}^{+} \end{array} $$
Find $\ln \mathrm{K}$ ...

When ammonia is added to the solution, pH is raised to 11 . Which half-cell reaction is affected by pH and by how much?

Ammonia is always added in this reaction. Which of the following must be incorrect?

The given graph represents the variation of Z (compressibility factor $=\mathrm{PV} / n \mathrm{RT}$ ) versus P , for three real gases $\mathrm{A}, \mathrm{B}$ and C . Identify the only incorrect statement.

The IUPAC name of $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCl}$ is

$$ \begin{aligned} &\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2+\mathrm{NOCl} \rightarrow \mathrm{P}\\ &\text { Identify the adduct. } \end{aligned} $$

\(\text { The major products } \mathbf{P} \text { and } \mathbf{Q} \text { are }\)

Match the extraction processes listed in Column I with metals listed in Column II.


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The species present in solution when CO2 is dissolved in water are

\(\text { Match the Column I with Column II : }\)


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\(\mathrm{B}(\mathrm{OH})_3+\mathrm{NaOH} \quad \mathrm{NaBO}_2+\mathrm{Na}\left[\mathrm{~B}(\mathrm{OH})_4\right]\)$+\mathrm{H}_2 \mathrm{O}$
How can this reaction be made to proceed in forward direction?

MgSO4 on reaction with NH4OH and Na2HPO4 forms a white crystalline precipitate. What is its formula?

A solution when diluted with $\mathrm{H}_2 \mathrm{O}$ and boiled, it gives a white precipitate. On addition of excess $\mathrm{NH}_4 \mathrm{Cl} / \mathrm{NH}_4 \mathrm{OH}$, the volume of precipitate decreases leaving behind a white gelat...

$\mathrm{CuSO}_4$ decolourises on addition of KCN , the product is

The edge length of unit cell of a metal having molecular weight \(75 \mathrm{~g} \mathrm{~mol}^{-1}\) is 5 \(\mathop A\limits^o\) which crystallizes in cubic lattice. If the density is \(2 \mathrm{~g} / \mathrm{cc}\), find the radius of me...

75.2 g of C6H5OH (phenol) is dissolved in a solvent of Kf = 14. If the depression in freezing point is 7 K then find the % of phenol that dimerises.

According to Bohr's theory
En = Total energy, Kn = Kinetic Energy, Vn = Potential Energy, rn = Radius of nth orbit
Match the following

Column I

Column II



(A)
\(\frac{V_n}{K_n} = ?\)
(P)
0


...

A monatomic ideal gas undergoes a process in which the ratio of P to V at any instant is constant and equals to 1 . What is the molar heat capacity of the gas?

For the reaction, $2 \mathrm{CO}+\mathrm{O}_2 \rightarrow 2 \mathrm{CO}_2 ; \Delta \mathrm{H}=-560 \mathrm{~kJ}$. Two moles of CO and one mole of $\mathrm{O}_2$ are taken in a container of volume 1 L . They completely form two moles of $\ma...

The direct conversion of A to B is difficult; hence, it is carried out by the following shown path:Given,
$$ \begin{aligned} & \Delta \mathrm{S}_{(\mathrm{A} \rightarrow \mathrm{C})}=50 \text { e.u. } \\ & \Delta \mathrm{S}_{(\mathrm{C} \ri...