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Aspirin is:

A. Acetylsalicylic acid B. 2-Methoxybenzoic acid C. Acetyloxalic acid D. Methylbenzoic acid Solution: (A) Aspirin is an acetylsalicylic acid.... View Article

H₂O₂ used in rocket has the concentration:

A. 50% B. 70% C. 30% D. 90% Solution: (D) H2O2 is used as an oxidant for rocket fuel and has 90% of concentration.... View Article

Which of the following is not used as propellant?

A. Hydrazine B. UDMH C. MMH D. Phenyl hydrazine Solution: (D) Phenyl hydrazine cannot be used as a propellant. Normally, rocket... View Article

Which one of the following acids is used as an oxidizer in rocket fuel?

A. HClO4 B. HNO2 C. H3PO4 D. HNO3 Solution: (D) Nitric acid composite propellant is typically used as an oxidizer in aerospace... View Article

Soaps are classified as:

A. Ether B. Salts of fatty acids C. Carbohydrates D. None of these Solution: (B) Soaps can be classified as salts of fatty acids.... View Article

Select the detergent that is used to prepare cosmetics:

A. DDBS B. Polyethylene glycol C. Cetyltrimetbyl ammonium chloride D. LAS Solution: (C) Cetyltremethyl ammonium chloride is a cationic... View Article

Which of the following is an example of azo dye?

A. Methyl Orange B. Malachite green C. Mercurochrome D. Martius yellow Solution: (A) Azo dye contain nitrogen as the azo group or... View Article

Which of the following is a basic dye?

A. Orange-I B. Aniline yellow C. Phenolphthalein D. Anthraquinon Solution: (B) Aniline yellow also called as 4-phenyldiazenylaniline is... View Article

An insoluble dye is reduced to a soluble colourless leuco form by an alkaline reducing agent. The fibre is soaked in the dye solution and then exposed to air to develop the colour. The dye is:

A. Mordant dye B. Vat dye C. Azo dye D. Direct dye E. Disperse dye Solution: (B) Vat dyes are insoluble in water and cannot be... View Article

Which type of dyes are not used do dye nylon and polyester fibres?

A. Vat dyes B. Basic dyes C. Disperse dyes D. Insoluble azo dyes Solution: (A) Vat dyes are not used to dye nylon and polyester fibres.... View Article

Alizarin is an example of:

A. Triayl dye B. Azo dye C. Vat dye D. Anthraquinone dye Solution: (D) Alizarin also known as 1,2−dihydroxyanthraquinone is an... View Article

The safest and the most common alternative of sugar is:

A. Glucose B. Aspartame C. Saccharine D. Cyclodextrin Solution: (B) Aspartame can be described as a type of an atrificial,... View Article

Which of the following is pheromone?

A. Linalool B. Disparlure C. BHA D. Alitame Solution: (B) Disparlure is an pheromone.... View Article

Butylated hydroxy toluene as a food additive acts as:

A. Flavouring agent B. Emulsifier C. Antioxidant D. Colouring agent Solution: (C) Butylated hydroxytoluene is a type of a lipophilic... View Article

4-chloro-3, 5-dimethyl phenol is called:

A. Chloramphenicol B. Paracetamol C. Barbital D. Dettol Solution: (D) Dettol is a popular antiseptic that we find readily available in... View Article

The reagent(s) used in the preparation of aspirin from salicylic acid;

A. SOCl2, pyridine B. (CH3CO)2O, H+ C. CH3CO2H, HCl D. CH3Cl, AlCl3 Solution: (B) Asprin (2-acetoxy benzoic acid) can be categorized as... View Article

Chloramphenicol is:

A. Broad spectrum antibiotic B. Narrow spectrum antibiotic C. Broad spectrum analgesic D. Broad spectrum antibacterial Solution: (A)... View Article

Chemically aspirin is known as:

A. Salicyclic acid B. Salicylaldehyde C. 2-acetoxybenzoic acid D. Phenyl salicylate Solution: (C) Aspirin is commonly known as... View Article

Tincture of iodine is:

A. Aqueous solution of I2 B. Solution of I2 in aqueous KI C. Alcohol-water solution of I2 D. Aqueous solution of KI Solution: (C)... View Article

The drug used to bring down the fever are known as:

A. Analgesic B. Antibiotics C. Antipyretics D. Sulpha drugs Solution: (C) Antipyretics are chemical compounds that are mainly used to... View Article

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