"Match List-I with List-II.

List-I	List-II
(Complexes)	(Hybridisation)
(A) \([\text{Ni(CO)}_4\text{]}\)	I. \(\text{sp}^3\)
(B) \([\text{Ni(CN)}_4\text{]}^{2-}\)	II. \(\text{dsp}^2\)
(C) \([\text{Fe(CN)}_6\text{]}^{4-}\)	III. \(\text{d}^2\text{sp}^3\)
(D) \([\text{MnF}_6\text{]}^{4-}\)	IV. \(\text{sp}^3\text{d}^2\)

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Which of the following compounds comprise of a phenolic group?
(A) Salicylic acid
(B) Salicylaldehyde
(C) Cresol
(D) Catechol
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Choose the incorrect statement from the following:

The increasing order of osmotic pressure of 0.1 M aqueous solution of the following is:
(A) \(MgCl _2\)
(B) NaCl
(C) \(NH _2 CONH _2\)
(D) \(K _3\left[ Fe ( CN )_6\right]\)
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In the amalgam of mercury with sodium, the correct option for the physical states of solute and solvent is

What is the product of the following reaction?
\[R-CN \frac{H_2 / Ni}{Na(Hg) / C_2 H_5 OH}\]
The options are:

Match List I with List II.

List-I	List-II
(A) Hoffmann bromamide reaction	I. Detection test for primary amines
(B) Carbylamine reaction	II. Hinsberg reagent
(C) Gabriel phthalimide synthesis	III. Amine with lesser number of carbon atoms
(D) Benzene sulphonyl chloride	IV. Reaction of phthalimide with KOH and R-X.

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Cryopreservation technique used for the conservation of threatened animals and plants is:

The reaction of neutral \(M n O 4 ^{ \wedge }\) - and \(I ^{ \wedge }\) - gives

Match List I with List II.

List-I (Compounds)	List-II (Oxidation number of Cobalt)
A. \(\left[ Co \left( NH _3\right)_5( NCS )\right] SO _3\)	I. \(+4\)
B. \(\left[ Co \left( NH _3\right)_4 Cl _2\right] SO _4\)	II. \(0\)
C. \(Na _4\left[ Co \left( S _2 O _3\right)_3\right]\)	III. \(+2\)
D. \(\left[ Co _2( CO )_8\right]\)	IV. \(+3\)

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Read the passage carefully and answer the questions
The carbonyl group of aldehydes and ketones is highly polar. The positively charged carbon is readily attacked by electron-rich nucleophile and the negatively charged oxygen atom is attacked by an electro-deficient electrophile. Aldehydes and ketones undergo nucleophilic addition reactions in the presence of acid or a base. The mechanism involves attack of a nucleophile on the electron deficient carbonyl carbon to form a tetrahedral intermediate. A new bond is formed between the carbon and oxygen. Protonation of the anion furnished by the reaction medium yields a neutral addition product. The addition product is same whether the reaction is catalyzed by acid or a base. For example in the presence of base aldehydes and ketones react with hydrogen cyanide to form cyanohydrin.
The source of nucleophile in the base catalyzed cyanohydrin formation is:

Consider the line \(\vec{r}=\hat{i}-2 \hat{j}+4 \hat{k}+\lambda(-\hat{i}+2 \hat{j}-4 \hat{k})\)
Match List-I with List-II

List-I	List-II
(A) A point on the given line	(I) \(\left(\frac{-1}{\sqrt{21}}, \frac{2}{\sqrt{21}}, \frac{-4}{\sqrt{21}}\right)\)
(B) direction ratios of the line	(II) \((4,-2,-2)\)
(C) direction cosines of the line	(III) \((1,-2,4)\)
(D) direction ratios of a line perpendicular to given line	(IV) \((-1,2,-4)\)

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Match List-l with List-ll

List-l (Disorders)	List-ll (Features)
(A) Colour Blindness	(I) 45 with 'XO'
(B) Haemophilia	(II) Trisomy of 21
(C) Down's Syndrome	(III) Mutation of certain genes on 'X' chromosome
(D) Turner's Syndrome	(IV) Protein involved in clotting of blood

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