Q. Mention the enthalpy of mixing $\left({△}_{mix}H\right)$ value to form an ideal solution.

Q. a) Draw labelled diagram of Standard Hydrogen Electrode ( SHE ).
Write its half cell reaction of $E^o$ value.
b) Calculate $△r{G}^{⊝}$ for the following reaction :
$F{e}_{\left(aq\right)}^{+2}+A{g}_{\left(aq\right)}^{+}\to {Fe}_{\left(aq\right)}^{+3}+A{g}_{\left(s\right)}$.
(Given : $E_{Cell}^0=+0.03V,F=96500C$).

Q. Give a reason for chemical inertness of noble gases.

Q. Complete the following reactions :
i) $R-C{H}_2-OH\underset{573K}{\overset{Cu}{\to }}......................................$
ii) $C{H}_3-CH=C{H}_2+H_{2}O\stackrel{H^{+}}{\rightleftharpoons }...........................$

Q. Define collision frequency. Give an example for Pseudo-first order reaction.

Q. a) The rate of a particular reaction doubles when the temperature changes from 300 K to 310 K. Calculate the energy of activation of the reaction.
[Given : $R=8.314J{K}^{-1}{mol}^{-1}$].
b) Show that the half-life period of a first order reaction is independent of initial concentration of reacting species.

Q. What is Lanthanoid contraction? Mention one of its consequences.

Q. Define the term 'molarity'.

Q. For the reaction $2Hl\to H_2+l_2$, write its molecularity.

Q. a) Calculate the packing efficiency in simple cubic lattice?
b) What is Frenkel defect? Give an example?

Q. a) On dissolving 2.34 g of solute in 40 g of benzene the boiling point of solution was higher than that of benzene by $0.81K,K_b$ value for benzene is 2.53 K kg $mo{l}^{-1}$. Calculate the molar mass of the solute.
b) State Henry's law. Write its mathematical form.

Q. $H_{3}C-Br+AgF\to H_{3}C-F+AgBr$

Q. Give the IUPAC name of $\left[Ti\right(H_{2}O{)}_6{]}^{3+}$. Draw cis and trans isomers of $\left[Pt\right(N{H}_3{)}_{2}C{l}_2]$.

Q. Which is the nitrogenous base present only in RNA, but not in DNA?

Q. Complete the following equations :
i) $\underset{\text{cold and dilute}}{2NaOH}+C{l}_2\to$

Q. Using Valence Bond theory. account for the geometry and magnetic property of $[Ni.(CN{)}_4{]}^{2-}$.
(Given : Atomic number of Ni = 28)

Q. Aluminium crystallises in an $fcc$ structure. Atomic radius of the metal is 125 pm. Calculate the edge length of unit cell of the metal?

Q. What is a secondary cell?

Q. Mention a drug which can act both as an analgesic as well as an antipyretic. Name an artificial sweetening agent.

Q. Write the equations for
i) The action of $S{O}_2$ with chlorine in the presence of charcoal
ii) The action of $S{O}_3$ with concentrated sulphuric acid
iii) The action of ozone with lead sulphide.

Q. For the manufacture of Ammonia by Haber's process, write the equation and optimum conditions for maximum yield of ammonia.

Q. With reference to the first row transition series :
i) Name the metal which possesses maximum number of oxidation states.
ii) Among $Z{n}^{+2}$ and $C{u}^{+2}$ which is colourless?
iii) Between $T{i}^2+$ and $V^{2+}$ which ion contains more number of unpaired electrons?

Q. Write the catalyst used in the decomposition of potassium chlorate to get potassium chloride and oxygen.

Q. Explain the manufacture of potassium dichromate from chromite ore $\left(FeC{r}_2{O}_4\right)$.

Q. What are food preservatives? Give an example.

Q. Draw labelled diagram of Hall-Heroult Electrolytic cell for the extraction of aluminium. Write anode and cathode reactions.

Q. Name the refining method used to produce semiconductors.

Q. Mention the hybridised state of carbonyl carbon atom.

Q. What is molar conductivity? How is it related to the concentration of electrolyte?

Q. Explain Rosenmund's reduction of benzoyl chloride.