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MCQ on Industrial Chemistry for Students
Glass-blowing is possible with
1. flint glass
2. pyrex glass
3. soda glass
4. hard glass
Option 2 – pyrex glass
Gas used in glass – blowing
1. Hydrogen
2. Oxygen
3. Oxy-acetylene
4. LPG
Option 3 – Oxy-acetylene
Ceramics are articles made from
1. cement
2. plaster of paris
3. clay
4. soda ash
Option 3 – clay
The chief raw materials required for the manufacture of ceramic are
1. clay
2. felspar
3. sand
4. all the above
Option 4 – all the above
Blue dye can be obtained from
1. Snail
2. Maddar roots
3. Indigo leaves
4. All the above
Option 3 – Indigo leaves
Turkey red dye can be obtained from
1. Snail
2. Maddar roots
3. Indigo leaves
4. None of these
Option 2 – Maddar roots
Dye that can be obtained from snail
1. Blue
2. Turkey red
3. Tyrian purple
4. Olive green
Option 3 – Tyrian purple
First synthetic dye was prepared by
1. Henry perkin
2. Jhon perkin
3. Lues perkin
4. Wilson perkin
Option 1 – Henry perkin
First synthetic dye
1. Methyl orange
2. Aniline yellow
3. Perkin voilet dye
4. Perkin blue dye
Option 3 – Perkin voilet dye
Perkin voilet dye commonly known as
1. Mauve
2. Martius yellow
3. Methyl orange
4. Aniline yellow
Option 1 – Mauve
Chromophore
1. soaks the fibre
2. binds the dye to fibre
3. impart colour to the fibre
4. intensifies the colour of the dye
Option 3 – impart colour to the fibre
Pyroxylin is used in Nail polish as
1. polymeric resin
2. plasticizer
3. colour pigment
4. perfume
Option 1 – polymeric resin
Which of the following is used as plasticizer in Nail polish
1. coconut-oil
2. ground nut-oil
3. castor-oil
4. alcohol
Option 3 – castor-oil
Low boiling solvents consist
1. Alcohols
2. Aliphatic hydrocarbons
3. Alcohol and Aliphatic hydrocurbons
4. Alcohol and alipatic and aromatic hydrocarbons
Option 4 – Alcohol and alipatic and aromatic hydrocarbons
The largest selling cosmetic item is
1. cold-cream
2. nail polish
3. face-powder
4. all of these
Option 3 – face-powder
Which of the following makes powder “opacitic”?
1. Red clay
2. Calcium carbonate
3. Magnesium
4. Titanium dioxide
Option 4 – Titanium dioxide
Which of the following is used in face-powder for slip
1. Magnesium oxide
2. Magnesium silicate
3. Lakes
4. Calcium stearate
Option 2 – Magnesium silicate
Which of the following substance is used for absorbency in face-powder
1. Zinc oxide
2. Calcium carbonate
3. Calcium stearate
4. Zinc stearate
Option 2 – Calcium carbonate
The compound used in face-powder for adherence
1. Calcium stearate
2. Zinc stearate
3. Magnesium stearate
4. All the above
Option 4 – All the above
Dyes or dyestuffs are coloured substances capable of imparting their colours to
1. Fibres
2. Papers
3. Poly ethylene bags
4. Walls
Option 1 – Fibres
In DNA, the complementary base pairs are
(A) A – G and T – C
(B) A-T and G – U
(C) U- A and C – G
(D) A-T and C – G
Option d – A-T and C – G
Purine derivative among the following bases is
(A) Uracil
(B) Cytosine
(C) Adenine
(D) Thymine
Option c – Adenine
Pyrimidine bases present in DNA are
(A) Uracil and cytosine
(B) Uracil and adenine
(C) Uracil and guanine
(D) Uracil and pyridine
Option a – Uracil and cytosine
A nucleoside on hydrolysis gives
(A) An aldopentose and heterocyclic base
(B) An aldopentose and orthophosphoric acid
(C) An aldopentose, heterocyclic base, and phosphoric acid
(D) A heterocyclic base and orthophosphoric acid
Option a – An aldopentose and heterocyclic base
In nucleic acid, sugar units are joined to phosphate through
(A) C₁ and C2 hydroxyl group
(B) C2 and C4 hydroxyl group
(C) C3 and C5 hydroxyl group
(D) C3 and C5 hydroxyl group
Option d – C3 and C5 hydroxyl group
Nucleotides are joined together through
(A) Phosphate halide linkage
(B) Phosphate amine linkage
(C) Phosphate ketone linkage
(D) Phosphate ester linkage
Option d – Phosphate ester linkage
The sugar present in DNA is ………….. and in RNA is
(A) 2-deoxy-D-ribose, D-ribose
(B) D-ribose, 2-deoxy-D-ribose
(C) D-glucose, L-fructose
(D) L-fructose, D-glucose
Option a – 2-deoxy-D-ribose, D-ribose
Fructose and glucose can be distinguished by
(A) Fehling’s test
(B) Seliwanoff’s test
(C) Barfoed’s test
(D) Benedicts’ test
Option b – Seliwanoff’s test
Which of the following compounds can form a Zwitterion?
(A) Benzoic acid
(B) Acetanilide
(C) Aniline
(D) Glycine
Option d – Glycine
Which of the following is a sink for CO?
(A) Haemoglobin
(B) Microorganisms present in the soil
(C) Oceans
(D) Plants
Option b – Microorganisms present in the soil
Which of the following is a basic amino acid?
(A) Lysine
(B) Serine
(C) Alanine
(D) Tyrosine
Option a – Lysine
The non-essential amino acids among the following
(A) Leucine
(B) Alanine
(C) Lysine
(D) Valine
Option b – Alanine
Enzyme-catalyzed reactions proceed in
(A) Five steps
(B) Six steps
(C) Three steps
(D) Four steps
Option c – Three steps
The enzyme is used for the digestion of food present in
(A) Blood
(B) Intestine
(C) Adrenal gland
(D) Saliva
Option d – Saliva
Some enzymes are so efficient that one enzyme molecule can catalyze the reaction of ……….. substrate molecules in ……. second
(A) 9000, one
(B) 10,000, one
(C) 10,000, one
(D) 20,000, one
Option c – 10,000, one
Enzymes are made up of
(A) Carbohydrates
(B) Edible proteins
(C) Proteins with a specific structure
(D) Nitrogen-containing carbohydrates.
Option c – Proteins with a specific structure
Identify the correct statements regarding enzymes
(A) Enzymes are specific biological catalysts that possess well-defined active sites.
(B) Enzymes are specific biological catalysts that can normally function at very high temperatures.
(C) Enzymes are heterogeneous catalysts that are very specific in their action.
(D) Enzymes are biological catalysts that cannot be poisoned.
Option a – Enzymes are specific biological catalysts that possess well-defined active sites
Which of the following statements is not correct?
(A) Insulin maintains sugar levels in the blood of the human body
(B) Ovalbumin is a simple food reserve in egg white
(C) Blood proteins thrombin and fibrinogen are involved in blood clotting
(D) Denaturation makes the proteins more active
Option d – Denaturation makes the proteins more active
The correct statement regarding RNA and DNA, respectively, is
(A) The sugar component in RNA is ribose, and the sugar component in DNA is 2-deoxyribose
(B) The sugar component in RNA is arabinose, and the sugar component in DNA is ribose
(C) The sugar component in RNA is 2′-deoxyribose, and the sugar component in DNA is arabinose
(D) The sugar component in RNA is arabinose, and the sugar component in DNA is 2′-deoxyribose
Option d – The sugar component in RNA is arabinose, and the sugar component in DNA is 2′-deoxyribose
Which one of the following is a non-reducing sugar?
(A) Lactose
(B) Glucose
(C) Sucrose
(D) Maltose
Option c – Sucrose
The central dogma of molecular genetics states that genetic information flows
(A) Amino acids → proteins → DNA
(B) DNA → carbohydrates → proteins
(C) DNA → RNA → proteins
(D) DNA → RNA → carbohydrates
Option c – DNA → RNA → proteins
Which of the following hormones is produced under conditions of stress that stimulate glycogenolysis in the liver of human beings?
(A) Thyroxin
(B) Insulin
(C) Adrenaline
(D) Estradiol
Option c – Adrenaline
Enzymes are made up of
(A) Edible proteins
(B) Proteins with a specific structure
(C) Nitrogen-containing carbohydrates
(D) Carbohydrates
Option b – Proteins with a specific structure
Which functional group participates in disulfide bond formation in proteins?
(A) Thiolactone
(B) Thiol
(C) Thioether
(D) Thioester
Option b – Thiol
The cell membranes are mainly composed of
(A) Carbohydrates
(B) Proteins
(C) Phospholipids
(D) Fats
Option c – Phospholipids
The helical structure of a protein is stabilized by
(A) Dipeptide bonds
(B) Hydrogen bonds
(C) Either bonds
(D) Peptide bonds
Option b – Hydrogen bonds
The correct statement with respect to the protein hemoglobin is that it
(A) Functions as a catalyst for biological reactions
(B) Maintains blood sugar levels
(C) Acts as an oxygen carrier in the blood
(D) Forms antibodies and offers resistance to disease
Option c – Acts as an oxygen carrier in the blood
The hormone that helps in the conversion of glucose to glycogen is
(A) Cortisone
(B) Bile acids
(C) Adrenaline
(D) Insulin
Option d – Insulin
A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid?
(A) Three
(B) Four
(C) One
(D) Two
Option b – Four
The electrolytic reduction of nitrobenzene in a strong medium produces
(A) Azobenzene
(B) Aniline
(C) p-aminophenol
(D) Azoxybenzene
Option c – p-aminophenol
Melting points are normally the highest for
(A) Tertiary amides
(B) Secondary amides
(C) Primary amides
(D) Amines
Option c – Primary amides
Electrolytic reduction of nitrobenzene in a weakly acidic medium gives
(A) Aniline
(B) p-Hydroxy aniline
(C) N-Phenyl hydroxyl amine
(D) Nitroso benzene
Option a – Aniline
Which of the following statements about primary amines is ‘False’?
(A) Alkyl amines are stronger bases than ammonia
(B) Alkyl amines are stronger bases than aryl amines
(C) Alkyl amines react with nitrous acid to produce alcohol
(D) Aryl amines react with nitrous acid to produce phenols
Hinsberg reagent is used to distinguish between ( chemistry and industry mcq questions )
(A) 1° amine & 2° amine
(B) 2° amine & 3° amine
(C) 1° amine & 3° amine
(D) All above
Option d – All above
By heating which mixture, of propane nitrile will be obtained?
(A) Ethyl alcohol + KCN
(B) Propyl alcohol + KCN
(C) Ethyl chloride + KCN
(D) Propyl chloride + KCN
Option c – Ethyl chloride + KCN
Nitration of aniline in a strongly acidic medium also gives m-nitroaniline because
(A) In spite of substituents, nitro groups always go to only m-position.
(B) In electrophilic substitution reactions, the amino group is meta directive.
(C) In the absence of substituents, nitro groups always go to m-position.
(D) In acidic (strong) medium, aniline is present as anilinium ion.
Option d – In acidic (strong) medium, aniline is present as anilinium ion.
Which of the following reactions is appropriate for converting acetamide to methenamine?
(A) Hoffman hyprobromamide reaction
(B) Sttephens reaction
(C) Gabriels phthalimide synthesis
(D) Carbylamine reaction.
Option a – Hoffman hyprobromamide reaction
The correct statement regarding the basicity of arylamines is
(A) Arylamines are generally more basic than alkyl amines because the nitrogen atom in arylamines is sp-hybridized.
(B) Arylamine is generally less basic than alkyl amine because the nitrogen lone pair electrons are delocalized by interaction with the aromatic ring p-electron system.
(C) Arylamines are generally more basic than alkyl amines because the nitrogen lone-pair electrons are not delocalized by interaction with the aromatic ring p-electron system.
(D) Arylamines are generally more basic than alkyl amines because of the aryl group.
Option b – Arylamine is generally less basic than alkyl amine because the nitrogen lone pair electrons are delocalized by interaction with the aromatic ring p-electron system
Aniline on direct nitration produces
(A) o-Nitroaniline
(B) m-Nitroaniline
(C) p-Nitroaniline
(D) 1 & 3 are correct
Option b – m-Nitroaniline
Nitration of acetanilide followed by hydrolysis gives ( chemistry and industry mcq questions )
(A) o-Nitroaniline
(B) p-Nitroaniline
(C) o- & p-Nitroaniline
(D) o-Nitroanilinium ion
Option c – o- & p-Nitroaniline
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotized and then heated with cuprous bromide. The reaction mixture so formed contains
(A) mixture of o- and m-bromotoluenes
(B) mixture of o- and p-bromotoluenes
(C) mixture of o- and p-dibromobenzenes
(D) mixture of o- and p-bromoanilines
Option b – mixture of o- and p-bromotoluenes
Oxidation of aniline with manganese dioxide and sulfuric acid produces
(A) phenylhydroxylamine
(B) nitrobenzene
(C) p-benzoquinone
(D) phenol
Option c – p-benzoquinone
Which compound does not show a diazo reaction
(A) Aniline
(B) p-Toluidine
(C) p-Nitroaniline
(D) Benzylamine
Option d – Benzylamine
Reagent capable of converting benzene diazonium chloride to benzene is
(A) Water
(B) Acid
(C) Hypophosphorus acid
(D) HCl
Option c – Hypophosphorus acid
Acetanilide when treated with bromine in acetic acid gives
(A) o-Bromoacetanilide
(B) N-Bromoacetanilide
(C) p-Bromoacetanilide
(D) m-Bromoacetanilide
Option c – p-Bromoacetanilide
The correct order of base strength of substituted aniline is
(A) p-Methylaniline > p-chloroaniline > p-Aminoaceto phenone
(B) p-Methylaniline > p-aminoacetophenone > o-chloro aniline
(C) p-Aminoacetophenone > p-methylaniline > p-chloroaniline
(D) p-Aminoacetophenone > p-chloroaniline > p-methylaniline
Option a – p-Methylaniline > p-chloroaniline > p-Aminoaceto phenone
A positive carbylamine test is given by ( chemistry and industry mcq questions )
(A) N, N-Dimethylaniline
(B) 2,4 -Dimethylaniline
(C) N-Methyl-o-methylaniline
(D) o-Methylbenzylamine
Option d – o-Methylbenzylamine
A primary nitroalkane is treated with nitrous acid, which of the following will be the main product
(A) Pseudonitrol
(B) Nitrolic acid
(C) A primary amine
(D) A primary alcohol
Option b – Nitrolic acid
Nitration of nitrobenzene in the presence of fuming nitric acid will generate a
(A) Solid product
(B) Gaseous product
(C) Semi-solid product
(D) Liquid product
Option a – Solid product
Which one of the following methods is neither meant for the synthesis nor for the separation of amines?
(A) Hofmann method
(B) Hinsberg method
(C) Curtius reaction
(D) Wurtz reaction
Option d – Wurtz reaction
The reaction of cyclohexanone with dimethylamine in the presence of a catalytic amount of an acid forms a compound, with water continuously removed during the reaction. The compound formed is generally known as
(A) An enamine
(B) A Schiff’s base
(C) An amine
(D) An imine
Option a – An enamine
Grignard reagent reacts with cyanogen chloride to form
(A) Alkane nitrile
(B) Alkyl halide
(C) Amine
(D) None
Option a – Alkane nitrile
The alkane nitriles are isomeric with ( chemistry and industry mcq questions )
(A) Primary alkanamines
(B) Secondary alkanamines
(C) Alkyl isocyanides
(D) Nitroalkanes
Option c – Alkyl isocyanides
Which of the following involves nitrene as an intermediate?
(A) Carbylamine reaction
(B) Hofmann bromamide reaction
(C) Reimer Tiemann reaction
(D) Friedel-Crafts reaction
Option b – Hofmann bromamide reaction
The compound obtained by the reaction between a primary amine and aldehyde is
(A) An amide
(B) Imine
(C) Nitrite
(D) Nitro
Option b – Imine
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