Match List-I with List-II

List-I (Aqueous Solutions)	List-II (Depression in freezing point (\(\Delta T_{f}\)) expression)
(A) \(0.2 \text{ mol } kg^{-1} Al_{2}(SO_{4})_{3}\)	(I) \(2K_{f}\)
(B) \(0.3 \text{ mol } kg^{-1} Na_{2}SO_{4}\)	(II) \(K_{f}\)
(C) \(1 \text{ mol } kg^{-1} KCl\)	(III) \(0.9K_{f}\)
(D) \(0.1 \text{ mol } kg^{-1} K_{3}[Fe(CN)_{6}]\)	(IV) \(0.4K_{f}\)

Choose the correct option:

Calculate the molality of KI if the density of 20% (mass/mass) aqueous solution of KI is 1.202 g mL^-1.
(Molar mass of KI is 166 g mol^-1)

Choose the correct order of increasing acidic strength of following compounds:
(A) 3-Nitrophenol
(B) Phenol
(C) Propan-1-ol
(D) 3,5-Dinitrophenol
Choose the correct answer from the options given below:

Select the appropriate reagent for the synthesis of tert-Butyl ethyl ether

Match List - I with List - II

List - I (Complex)	List - II (Hybridisation)
(A) \([CoF_6]^{3-}\)	(I) \(sp^3\)
(B) \([Co(NH_3)_6]^{3+}\)	(II) \(dsp^2\)
(C) \([NiCl_4]^{2-}\)	(III) \(d^2sp^3\)
(D) \([Ni(CN)_4]^{2-}\)	(IV) \(sp^3d^2\)

Choose the correct answer from the options given below :

Read the passage carefully and answer the questions
Nearly all the transition elements display typical metallic properties such as high tensile strength, ductility, malleability, high thermal and electrical conductivity and metallic lustre. The transition metals (with the exception of Zn, Cd and Hg) are very hard and have low volatility. Their melting and boiling points are high. They have high enthalpies of atomization. lons of the same charge in a given series show progressive decrease in radius with increasing atomic number. However, the variation within a series is quite small. The filling of 4f before 5d orbital results in a regular decrease in atomic radii called Lanthanoid contraction which essentially compensates for the expected increase in atomic size with increasing atomic number. The net result of the lanthanoid contraction is that the second and the third d series exhibit similar radii (e.g., Zr 160 pm, Hf 159 pm) and have very similar physical and chemical properties. There is an increase in ionisation enthalpy along each series of the transition elements from left to right. The first ionisation enthalpy, in general, increases, but the magnitude of the increase in the second and third ionisation enthalpies for the successive elements, is much higher along a series. One of the notable features of a transition elements is the great variety of oxidation states these may show in their compounds.
Atomic number of Fe, Co, Ni and Cu are 26, 27, 28 and 29 respectively. Which among them is expected to possess the highest value for the second ionization enthalpy?

Which among the following metals shows 6 secondary valencies ?
(A) 1 mole of \(PdCl _2 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(B) 1 mole of \(NiCl _2 \cdot 6 H _2 O\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(C) 1 mole of \(PtCl _4 \cdot 2 HCl\) does not give reaction with \(AgNO _3\)
(D) 1 mole of \(CoCl _3 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 1 mole of AgCl precipitated
(E) 1 mole of \(PtCl _2 \cdot 2 NH _3\) does not give reaction with \(AgNO _3\)
Choose the correct answer from the options given below :

Match List-l with List-ll

List-l (Enzymes)	List-II (Used for)
(A). Protease	(I). RNA
(B). Chitinase	(II). Protein
(C). Lysozyme	(III). Fungus
(D). Ribonuclease	(IV). Bacterial cell

Choose the correct answer from the options given below:

Bacillus thuringiensis is widely used these days as:

Magnetic moment of a thin bar magnet is ' M '. If it is bent into a semicircular form, its new magnetic moment will be

Choose the correct products formed in acidic medium.
\(5 \mathrm{SO}_3^{2-}+2 \mathrm{MnO}_4^{-}+6 \mathrm{H}^{+} \rightarrow ?\)

Which of the following statement is incorrect about aldol condensation?

On dissolving sugar in water at room temperature it feels cool to the touch. Under which of the following cases, dissolution of sugar will be most rapid?