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MCQ on Gaseous State for NEET Students
Quick Quiz
Identify the INCORRECT statement.
(A) All monosaccharides whether aldoses or ketoses are reducing sugars.
(B) Polysaccharides are non-sugars.
(C) Among, sucrose, glucose, and fructose, glucose is the sweetest.
(D) Monosaccharides are the basic units of all carbohydrates.
Option c – Among, sucrose, glucose, and fructose, glucose is the sweetest
An organic compound ‘A’ on reduction gives compound ‘B’, which on reaction with trichloromethane and caustic potash forms ‘C’. The compound ‘C’ on catalytic reduction gives compound ‘D’. If compound ‘A’ is nitrobenzene, then compound ‘D’ is …………
(A) N-methyl aniline
(B) N-ethylaniline
(C) Methanamine
(D) Benzenamine
Option a – N-methyl aniline
The vitamins ………. are soluble in oils and fats.
(A) A, D
(B) A, B
(C) B, C
(D) D, C
Option a – A, D
A regular copolymer of ethylene and vinyl chloride contains alternate monomers of each type. What is the weight percent of ethylene in this copolymer?
(A) 28.02
(B) 30.94
(C) 62.5
(D) 90.5
Option b – 30.94
Saran is a copolymer of ……….
(A) vinyl chloride and acrylonitrile
(B) ethylene glycol and phthalic acid
(C) vinyl chloride and vinylidene chloride
(D) diethyl carbonate and bisphenol A
Option c – vinyl chloride and vinylidene chloride
Maximum pKb value is of ………
(A) C6H5NHCH3
(B) (CH3CH₂)₂NH
(C) (CH3)2NH
(D) C6H5-NH-C6H5
Option d – C6H5-NH-C6H5
Ethylene glycol + X→ Terylene Ethylene glycol + Y→ Glyptal Identify X and Y respectively.
(A) Dimethyl terephthalate, phthalic acid
(B) Dimethylterephthalate, adipic acid
(C) Hexamethylenediamine, phthalic acid
(D) Dimethylterephthalate, acrylonitrile
Option a – Dimethyl terephthalate, phthalic acid
Which of the following sets contain only copolymers?
(A) SBR, glyptal, nylon-6,6
(B) Nylon-6, butyl rubber, neoprene
(C) Polythene, polyester, PVC
(D) Melamine, bakelite, teflon
Option a – SBR, glyptal, nylon-6,6
Compound P on reduction by tin and conc. HCI forms compound Q (an amine). Compound Q be synthesized by Gabriel phthalimide cannot but it can be synthesized by Hoffmann synthesis bromamide degradation of benzamide. Identify compound P.
(A) Benzoic acid
(B) Aniline
(C) Nitrobenzene
(D) Benzonitrile
Option c – Nitrobenzene
Identify the homopolymers.
(A) SBR, melamine
(B) Bakelite, PVC
(C) Nylon-6, starch
(D) Nylon-6,6, glyptal
Option c – Nylon-6, starch
Which of the following is an INCORRECT statement?
(A) Diphenylamine is a tertiary amine.
(B) Toluidine is an aromatic primary amine.
(C) Benzylamine is a primary amine.
(D) Cyclopentylamine is a primary amine.
Option a – Diphenylamine is a tertiary amine.
The efficiency of an enzyme to catalyze a reaction is due to its capacity to ………..
(A) reduce the activation energy of the reaction
(B) form a strong enzyme-substrate complex
(C) decrease the bond energies of all the substrate molecules
(D) increase the free energy of the reaction
Option a – reduce the activation energy of the reaction
All of the following are B vitamins, EXCEPT ……….
(A) ascorbic acid
(B) riboflavin
(C) niacin
(D) pyridoxine
Option a – ascorbic acid
Which of the following amines CANNOT be prepared by Gabriel’s phthalimide synthesis?
(A) Butan-1-amine
(B) Propan-2-amine
(C) 2-Phenylethanamine
(D) N-Methylethanamine
Option d – N-Methylethanamine
Which of the following statements about amines is ‘INCORRECT’?
(A) Alkylamines are stronger bases than ammonia.
(B) Alkylamines are stronger bases than arylamines.
(C) Primary alkylamines react with nitrous acid to produce corresponding alcohols.
(D) Primary arylamines react with nitrous acid to produce corresponding phenols.
Option d – Primary arylamines react with nitrous acid to produce corresponding phenols.
Identify the CORRECT statement.
(A) In a strongly acidic medium, aniline is converted into anilinium ion.
(B) The -NH₂ group is meta-directing.
(C) In aniline, the highest electron density is present in meta positions.
(D) Anilinium ion is more stable than aniline.
Option a – In a strongly acidic medium, aniline is converted into anilinium ion.
Which amino acid is classified as neutral and non-polar?
(A) Aspartic acid
(B) Histidine
(C) Phenylalanine
(D) Lysine
Option c – Phenylalanine
Identify the CORRECT statement regarding LDPE and HDPE.
(A) Both are additional polymers.
(B) Both have the same melting point.
(C) Both are linear polymers.
(D) Both are prepared under the same reaction conditions.
Option a – Both are additional polymers.
Among the following, the weakest base is ……..
(A) C6H5NH2
(B) p-CH3O-C6H4NH₂
(C) p-CH3-C6H4NH2
(D) d. p-SO3-C6H4NH₂
Option d – d. p-SO3-C6H4NH₂
Which of the following forms of ethylamine the reduction?
(A) Acetoxime
(B) Propanenitrile
(C) Acetamide
(D) Nitropropane
Option c – Acetamide
The increasing order of isoelectric point of the following amino acids in aqueous solution is: Alanine, Glutamic acid, Arginine
(A) Alanine < Glutamic acid < Arginine
(B) Glutamic acid < Alanine < Arginine
(C) Alanine < Arginine < Glutamic acid
(D) Glutamic acid < Arginine < Alanine
Option b – Glutamic acid < Alanine < Arginine
Sulphur percent in rubber used in the preparation of rubber tyres is ………
(A) 3-10%
(B) 10-20%
(C) 20-30%
(D) 40-50%
Option a – 3-10%
‘X’ undergoes polymerization in presence of a peroxide catalyst to form a polymer. known as orlon. This polymer is used in making blankets as artificial wool Identify ‘X’.
(A) Styrene
(B) Tetrafluoroethylene
(C) Vinyl chloride
(D) Acrylonitrile
Option d – Acrylonitrile
Stachyose is a ………
(A) monosaccharide
(B) disaccharide
(C) trisaccharide
(D) tetrasaccharide
Option d – tetrasaccharide
Which of the following is CORRECT regarding PVC? Linear polymer (II) Network polymer (III) Thermosetting polymer (IV) Thermoplastic polymer (V) Copolymer (VI) Homopolymer
(A) (I), (III), and (VI)
(B) (I), (IV), and (V)
(C) (II), (IV), and (V)
(D) (I), (IV), and (VI)
Option d – (I), (IV), and (VI)
Identify the CORRECT statement.
(A) Lactose is a reducing sugar while maltose is a non-reducing sugar.
(B) Cellobiose is a reducing sugar while sucrose is a non-reducing sugar.
(C) Cellobiose is a trisaccharide while sucrose is a disaccharide.
(D) Lactose is a disaccharide while maltose is a monosaccharide.
Option b – Cellobiose is a reducing sugar while sucrose is a non-reducing sugar.
Select the INCORRECT statement.
(A) Methyl cyanide is reduced to methylamine by LiAlH4.
(B) Tertiary amines do not undergo acetylation.
(C) Primary amines consume three moles of the alkyl halide to form tetraalkylammonium halide.
(D) Azo compounds are brightly colored and are used as dyes.
Option a – Methyl cyanide is reduced to methylamine by LiAlH4.
Identify the related vitamin based on the information given below: Sources: Carrots, tomatoes, sweet potatoes, milk, etc. Deficiency: Dryness of skin and hair, Xerophthalmia
(A) Vitamin C
(B) Vitamin E
(C) Vitamin B₁
(D) Vitamin A
Option d – Vitamin A
Which of the following set contains only thermosetting polymers? ( Best Online Test Series for NEET )
(A) Polyester, SBR, polythene
(B) Bakelite, melamine, urea-formaldehyde resin
(C) Dextron, glyptal, polystyrene
(D) Polythene, polystyrene, PAN
Option b – Bakelite, melamine, urea-formaldehyde resin
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