Lab Chemical-60

Tryptone is commonly used in microbiology to produce lysogeny broth (LB) for the growth of E. coli and other microorganisms. It provides a source of amino acids for the growing bacteria. ... Tryptone is also a component of some germination media used in plant propagation.

Methyl Violet 10B powder dye is intended for routine staining according to Gram, for staining bacterial components and for staining amyloids.     The main use of methyl violet is to dye textiles purple and give deep violet and blue colors in paints and printing ink. Methyl violet 2B (simply called methyl violet) is used in chemistry as a pH indicator. Methyl violets are mixtures of tetramethyl, pentamethyl and hexamethyl pararosanilins.

N BUTANOL AR 99.5% used in plastics, polymers, lubricants, brake fluids, and synthetic rubber. 

It can be used as a source of fuel. As an environmentally friendly and powerful solvent for cleaning and polishing products

n-Butanol (also known as normal butanol and n-butyl alcohol) is a primary alcohol with a molecular formula of C4H10O. It has a colourless liquid of medium volatility and a characteristic banana-like odour.

N,N′-Methylenebisacrylamide (MBAm or MBAA)[1] is a cross-linking agent[2] used during the formation of polymers such as polyacrylamide. Its molecular formula is C7H10N2O2. Bisacrylamide is used in biochemistry as it is one of the compounds of the polyacrylamide gel (used for SDS-PAGE). 

N,N′-Dicyclohexylcarbodiimide (DCC or DCCD) is an organic compound with the chemical formula (C6H11N)2C. It is a waxy white solid with a sweet odor. Its primary use is to couple amino acids during artificial peptide synthesis. The low melting point of this material allows it to be melted for easy handling.

Cetrimonium cation acts as an antiseptic agent against bacteria and fungi. 

Cetyltrimethylammonium bromide is a quaternary ammonium surfactant. It is a popular cationic detergent. So, the correct answer is option B

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nitrobenzene produced in the United States is used to manufacture a chemical called aniline.  Nitrobenzene is also used to produce lubricating oils such as those used in motors and machinery. 

Nitrobenzene is also used to mask unpleasant odors in shoe and floor polishes, leather dressings, paint solvents, and other materials. Redistilled, as oil of mirbane, nitrobenzene had been used as an inexpensive perfume for soaps. It has been replaced by less toxic chemicals for this purpose.

Niobium pentoxide is used mainly in the production of niobium metal, but specialized applications exist for lithium niobate and as a component of optical glass.  Thin films of Nb2O5 form the dielectric layers in solid electrolyte capacitors.

Molten niobium pentoxide has lower mean coordination numbers than the crystalline forms, with a structure comprising mostly NbO5 and NbO6 polyhedra

 n-Hexane is a chemical made from crude oil. Pure n-Hexane is a colorless liquid with a slightly disagreeable odor. It is highly flammable, and its vapors can be explosive. Pure n-Hexane is used in laboratories.

Hexane is an unbranched alkane containing six carbon atoms. It has a role as a non-polar solvent and a neurotoxin. It is an alkane and a volatile organic compound.

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Valeric acid is used as an intermediate in the manufacture of flavors and perfumes, ester type lubricants, plasticizers and vinyl stabilizers. It is a food additive used as a synthetic flavoring substance and adjuvant.

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Keep away from strong oxidizing agents.

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