Identify the product 'X' in the following reaction:
\(C_2H_5COONa\ \xrightarrow[\text{Heat}]{NaOH+CaO}\ X+ Na_2CO_3\)

Which of the following statements is correct for ortho and para nitrophenols?
(A) They can be separated by steam distillation
(B) o-Nitrophenol undergoes intramolecular hydrogen bonding
(C) p-Nitrophenol undergoes intermolecular hydrogen bonding
(D) p-Nitrophenol is less volatile
Choose the correct answer from the options given below :

Match List - I with List - II

List - I	List - II
(A) Chloroxylenol + terpineol	(I) Antiseptic
(B) Penicillin	(II) Antibiotic
(C) Iproniazid	(III) Tranquillizer
(D) Aspirin	(IV) Analgesic

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In the formation of coordination complexes, if the inner \(d\) orbital \((n - 1)d\) is used in hybridisation, the complex, is called an inner orbital or low spin or spin paired complex. And if it uses outer \(d\) orbital \((nd)\) in hybridisation (like \(sp^3d^2\)), it is called outer orbital or high spin or spin free complex. The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the complex. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting. For coordination complexes, the magnetic moment is determined by the number of unpaired electrons and is calculated by using the 'spin-only' formula, \(\mu = \sqrt{n(n+2)}\) where \(n\) is the number of unpaired electrons and \(\mu\) is the magnetic moment in units of Bohr magneton \((BM)\). The coordination compounds are of great importance. These compounds are widely present in the mineral, plant and animal worlds and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine.
Fe(II) octahedral complexes can show different 'spin only' magnetic moments for arrangements in the presence of weak and strong ligands. The 'spin only' magnetic moments of these complexes with weak and strong ligands, respectively, are

Half life of the zero order reaction is:

Arrange the following oxides in the order of their basic strength:
(A) \(V_2O_5\)
(B) \(V_2O_3\)
(C) \(V_2O_4\)
(D) \(Mn_2O_7\)
Choose the Correct answer from the options given below:

"In the extraction of Al metal from Bauxite ore, the correct sequence of various processes involved is:
A. Heating the ore to remove volatile impurities.
B. Electrolysis of molten ore-mixture.
C. Leaching of alumina with concentrated NaOH.
D. Grading and crushing of big ore particles.
E. Mixing alumina with \(\text{CaF}_2\) or \(\text{Na}_3\text{AlF}_6\).
Choose the correct answer from the options given below:"

What is the distance that a beam of light of wavelength 500 nm can travel without significant broadening, if the diffracting aperture is 3 mm wide ?

Match the complex species given in List-l with the possible isomerism given in List-ll:

List-l Complex species	List-ll Isomerism
(A) \(\left[ Co \left( NH _3\right)_4 Cl _2\right]^{+}\)	(I) optical
(B) cis- \(\left[ Co ( en )_2 Cl _2\right]^{+}\)	(II) ionization
(C) \(\left[ Co \left( NH _3\right)_5\left( NO _2\right)\right] Cl _2\)	(III) coordination
(D) \(\left[ Co \left( NH _3\right)_6\right]\left[ Cr ( CN )_6\right]\)	(IV) geometrical

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The hormone which acts on the uterine muscle and causes stronger uterine contractions is known as:

0.04 F of charge will liberate how much of oxygen gas (at STP) from acidified water?

Identify the enzyme which is used to isolate genetic material from the bacterial cells.

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Carboxylic acids are the organic compounds which comprise of carboxyl functional group, -COOH. These are generally found in nature, some higher members are known as fatty acids as they occur in natural fats as esters of glycerol. They can be prepared from oxidation of alcohols and aldehydes, hydrolysis of nitriles and amides and Grignard reagents. They are stronger acids than simple phenols and alcohols. but weaker than mineral acids. Substituents affect the acidity of aliphatic and aromatic carboxylic acids. They undergo reactions involving cleavage of -OH and C-OH bond. Carboxylic acids having an alpha hydrogen get halogenated in the presence of red phosphorus to form alpha halo carboxylic acids. The reaction is known as Hell Volhard Zelinsky reaction. Besides these aromatic carboxylic acids undergo electrophilic substitution reactions. They are versatile and are employed in the manufacture of various useful compounds. For example, methanoic acid is used in rubber, textile, dyeing, leather and electroplating industries. Higher fatty acids are used in the manufacture of soaps and detergents. Esters of Benzoic acid are used in perfumery.
Identify the strongest acid