Which of the following complexes is heteroleptic?

In the depression of freezing point experiment, it is found that,
A. The vapour pressure of the solution is less than that of pure solvent.
B. The vapour pressure of the solution is than that of pure solvent.
C. Only solute molecules solidify at the freezing point.
D. Only solvent molecules ecules solidify at the freezing point.
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Out of the following given statements, identify the correct ones :
(A) Yttrium does not exhibit variable oxidation states, yet it is a transition element.
(B) Many compounds of transition elements act as catalysts in various chemical reactions.
(C) Technetium is an artificially synthesized element of 4d transition series.
(D) The E° value for the Mn³⁺/Mn²⁺ couple is much more positive than that for Cr³⁺/Cr²⁺.
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p-block elements are placed in groups 13 to 18 of the periodic table. Group 15 is nitrogen family. Nitrogen makes various compounds like \(NH _3, HNO _3, N_2 O , NO _2\) etc. Phosphorus exists in the form of white and red phosphorus. White phosphorus glows in dark. \(PH _3\) gas is used as smoke screen. Group 16 is called oxygen family. Dry air contains \(21\% O _2\) gas by volume. Combined sulphur exists as sulphates such as gypsum, epsome salt, baryte etc. The allotropic forms of sulphur are Rhombic and monoclinic sulphur. \(S_2\) is paramagnetic like \(O_2\) and it stable at high temperature.
Group 17 is Halogen family. \(F_2\) is highly reactive, \(C l_2\) is greenish yellow gas. Both \(S O_2\) and \(C l_2\) are used for bleaching. Group 18 is Noble gas family but some noble gases also form compounds.
Complete hydrolysis of \(XeF _6\) gives HF and \(XeO _3\) as main products.
Sulphate of magnesium of the following is :

Which of the following statements is correct for the galvanic cell?

The carboxylic acid that does not undergo Hell-Volhard-Zelinsky reaction is:

Arrange the following alkyl halides in increasing order of reactivity towards SN2 reaction :
(A) 1-Bromobutane
(B) 1-Bromo-2,2-dimethylpropane
(C) 1-Bromo-2-methylbutane
(D) 1-Bromo-3-methylbutane
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Match List I with List II

List - I (Codes)	List - II (Codes for)
(A) UUU	(I) Phenyalanine
(B) AUG	(II) Initiator codon
(C) UAA	(III) Terminator codon
(D) GUU	(IV) Valine

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Which of the following base is NOT present in DNA?

In a game of 100 points, A can give B 20 points and C 28 points. How many points can B give C?

Which of the following are correct?
(A) The function \(f(x)=3 x+12\) is increasing on \(R\).
(B) The function \(f(x)=e^{2 x}\) is decreasing on \(R\).
(C) The function \(f(x)=x^2-x+1\) is neither increasing nor decreasing on \((-1,1)\).
(D) The function \(f(x)=x^3-3 x^2+4 x\) is increasing on \(R\).
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Which of the following compound will not undergo Azo coupling reaction?

The function \(f:[-1,1] \rightarrow \mathbb{R}\) (set of real numbers) given by \(f(x)=\frac{x}{x+3}\) is