Chemistry and Industry MCQ Questions

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    Chemistry and Industry MCQ Questions. We covered all the Chemistry and Industry MCQ Questions in this post for free so that you can practice well for the exam.

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    MCQ on Industrial Chemistry for Students

    Quick Quiz

    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

    Option 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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