Identify " \(Y\) " in the following reaction:

Salicylaldehyde can be prepared by treating phenol with

Match List I with List II

LIST I	LIST II
A. Pain killers	I. Antipyretics
B. Treatment of infections	II. Analgesics
C. Reducing fever	III. Antibiotics
D. Treatment of depression	IV. Tranquilizers

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Read the passage carefully and answer the questions
Optically active polyhydroxy aldehydes or ketones or molecules which provide such units on hydrolysis are called carbohydrates. They can be broadly classified as monosaccharides, disaccharides and polysaccharides depending on their behavior towards hydrolysis. They are also classified as reducing or non-reducing sugars. Another class of biomolecules is proteins which are polymers of twenty different amino acids linked by peptide bonds. Amino acids can be classified as acidic, basic or neutral depending on the relative number of amino and carboxyl groups in their molecule. The essential amino acids cannot be synthesized by our body and hence must be provided through diet. Nucleic acids are the polymers of nucleotides which in turn consist of a base, pentose sugar and phosphate. There are two types of nucleic acids namely, DNA and RNA which differ in the composition of sugar and a base.
Four bases present in RNA molecule are:

Match List-I and List-II

List-I	List-II
A. Phosphine	I. Catches fire in air
B. Chlorine water	II. Smoke screen
C. White phosphorus	III. Crown structure
D. Sulphur monoclinic and rhombic	IV. Bleaching agent

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Give the reason for low concentration of oxygen in the blood and tissues of people living at high altitude

Match List - I with List - II

List - I	List - II
(A) \([Ni(CN)_4]^{2-}\)	(I) \(EDTA^{4-}\)
(B) bidentate	(II) paramagnetic
(C) chelate ligand	(III) diamagnetic
(D) \([Ni(Cl)_4]^{2-}\)	(IV) oxalate

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The cartesian equation of the plane whose intercepts on the coordinate axes are 2, -3 and 4 is:

Amit, Sumit and Puneet were doing shooting.
Amit hits the target 4 times in 5 shots, Sumit hits the target 3 times in 4 shots and Puneet hits the target 2 times in 3 shots.
Then the probability that Amit, Sumit and Puneet all may hit the target is:

Which of the following complexes will show absorbance of light at the lowest wavelength?

The integral \(I=\int e^x\left(\frac{1+\sin x}{1+\cos x}\right) d x\) is :

Match List-I with List-II

List-I (Terms)	List-II (Applications)
(A) RNA interference	(I) ADA deficiency
(B) Genetically engineered insulin	(II) \(\alpha\)-1-antitrypsin
(C) Gene therapy	(III) Meloidegyne incognitia
(D) Biological product	(IV) Eli Lilly

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Read the following passage carefully and answer the given questions. During anaerobic sludge digestion, bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide. These gases form biogas and can be used as source of energy as it is inflammable. The bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum. You must have noticed that bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases. Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol. The BOD test measures the rate of uptake of oxygen by microorganisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water.
During anaerobic sludge digestion, bacteria produce the biogas. The composition of this biogas is -