Match the biological entity given in List-I with the metal involved in it given in List-II

List-I (Biological entity)	List-II (Metal involved)
(A) Chlorophyll	(I) Iron
(B) Haemoglobin	(II) Magnesium
(C) Vitamin B12	(III) Nickel
(D) Urease	(IV) Cobalt

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With reference to D-glucose, which of the following
cannot be explained by its open chain structure?
(A) D-Glucose does not give Schiff's test.
(B) The pentaacetate of D-glucose does not react with hydroxylamine.
(C) Glucose is found to exist in two different crystalline forms.
(D) D-glucose reacts with mild oxidizing agents like \(\text{Br}_2\text{-H}_2\text{O}\)
and forms gluconic acid.
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Which of the following is not caused due to deficiency of hormones?

Which of following is a correct statement ?

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, \(Cl _2\) is greenish yellow gas. Both \(SO _2\) and \(Cl _2\) 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. The permanent bleaching effect is caused by :

What product(s) is formed when an Alkyl halide undergoes ammonolysis ?
(A) Primary amine
(B) Secondary amine
(C) Quaternary ammonium salt
(D) Tertiary amine
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Match List-l with List-II

List-l	List-II
A. Methyl alcohol	I. Highly poisonous
B. Ethyl alcohol	II. Carbolic acid
C. Phenol	III. Highly soluble in water
D. Picric acid	IV. Turns blue litmus red

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The ability of some snails and fish to avoid summer related problems like heat and dessication is called

Identify the tools for recombinant DNA technology:
A. Restriction enzymes and hostorganism
B. Ligases and vectors
C. Ribosome
D. Polymerase enzyme
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The order and degree of differential equation \(\left[1+\left(\frac{d y}{d x}\right)^2\right]^2=\frac{d^2 y}{d x^2}\) respectively, are

Answer the question on the basis of passage given below :
Formaldehyde is the first member of the aldehydic series. It is present in green leaves of plants where its presence is supposed to be due to the reaction of \(CO_2\) with water in the presence of sunlight and chlorophyll. Commercially, formaldehyde is obtained by the controlled oxidation of methane in the presence of molybdenum oxide (\(MoO\)) acting as a catalyst. Formaldehyde is a constituent of a number of polymers also called resins. These are non volatile solids or semi solids which are obtained directly from certain plants and can be synthesized in the laboratory.
Question: How is formalin useful?

If \(\int_0^1 \frac{a \sqrt{x} d x}{\left(x^{3 / 2}+1\right)}=1\), then \(a\) is equal to:

The value of the determinant \(\left|\begin{array}{ccc}85 & 15 & 30 \\ 1 & 3 & 4 \\ 17 & 3 & 6\end{array}\right|\) is: