JEE Chemistry Chemistry In Everyday Life MCQs Set 05

Practice MCQs for JEE Chemistry Chemistry In Everyday Life

Review structured MCQ sets for JEE Chemistry Chemistry In Everyday Life. Built according to official JEE guidelines, these downloadable questions support daily revision and core concept reinforcement.

Access Chemistry In Everyday Life Questions and Solutions

Access the complete set of multiple-choice questions for Chemistry In Everyday Life below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official JEE textbooks.

Multiple Choice Questions

Question 1: An azo dye is fixed on fabrics by the process applicable in
(a) vat dyes
(b) mordant dyes
(c) developed dyes
(d) substantive dyes
Show Answer & Explanation

Answer: (c) developed dyes

Explanation:
1. An azo dye is made on the fibre itself by dipping it in a coupling agent and then a diazonium salt, which is ingrain or developed dyeing.

Teacher's Note:
1. Always link acid strength to the stability of the carboxylate ion.
2. Electron-withdrawing groups increase acidity and electron-donating groups decrease it.

Question 2: Red ink is prepared from
(a) phenol
(b) aniline
(c) Congo red
(d) eosin
Show Answer & Explanation

Answer: (d) eosin

Explanation:
1. Eosin is a red phthalein dye.

Teacher's Note:
1. Note the name reaction and write its equation once in your notebook.
2. Such one-step recall questions are common in the JEE and NEET style papers.

Question 3: The blue print process involves the use of
(a) indigo dyes
(b) vat dyes
(c) iron compounds
(d) zinc compounds
Show Answer & Explanation

Answer: (c) iron compounds

Explanation:
1. Blue prints are made with iron(III) salts such as ferric ammonium citrate and potassium ferricyanide, which give Prussian blue.

Teacher's Note:
1. Count carbons before and after the reaction to avoid mistakes in chain-length changes.
2. Check whether the reagent is a reducing, oxidising or dehydrating agent before choosing the product.

Question 4: An azo dye is formed by interaction of an aromatic diazonium chloride with
(a) a phenol
(b) an aliphatic primary amine
(c) benzene
(d) nitrous acid
Show Answer & Explanation

Answer: (a) a phenol

Explanation:
1. The coupling of a diazonium ion with a phenol or an aromatic amine gives an azo dye containing -N=N-.

Teacher's Note:
1. Eliminate options by checking functional groups on both sides of the reaction.
2. Only one option will have the correct functional group and carbon skeleton.

Question 5: Alizarin belongs to the class of
(a) vat dyes
(b) mordant dyes
(c) substantive dyes
(d) reactive dyes
Show Answer & Explanation

Answer: (b) mordant dyes

Explanation:
1. Alizarin needs a metal mordant to fix it on the fibre.

Teacher's Note:
1. Revise the physical properties such as hydrogen bonding and boiling points together with the chemistry.
2. Compare similar compounds in pairs when you are asked to rank them.

Question 6: An insoluble coloured compound formed by the action of metallic salts on dyes is known as
(a) a lake
(b) a mordant
(c) a dye intermediate
(d) none of these
Show Answer & Explanation

Answer: (a) a lake

Explanation:
1. The dye and metal hydroxide form an insoluble coordination compound called a lake.

Teacher's Note:
1. Learn the reactivity order of acid derivatives: acyl chloride, anhydride, ester, amide.
2. Most questions of this type are solved by recalling the standard reagent and product pair.

Question 7: Alizarin dye obtained from the root of the madder plant is an anthraquinone derivative. Its structure corresponds to
(a) 1,2-dihydroxyanthraquinone
(b) 2,3-dihydroxyanthraquinone
(c) 1,4-dihydroxyanthraquinone
(d) 1-hydroxyanthraquinone
Show Answer & Explanation

Answer: (a) 1,2-dihydroxyanthraquinone

Explanation:
1. Alizarin is 1,2-dihydroxy-9,10-anthraquinone.

Teacher's Note:
1. Always link acid strength to the stability of the carboxylate ion.
2. Electron-withdrawing groups increase acidity and electron-donating groups decrease it.

Question 8: To which class of dyes does phenolphthalein belong?
(a) azo dyes
(b) nitro dyes
(c) triphenylmethane dyes
(d) phthalein dyes
Show Answer & Explanation

Answer: (d) phthalein dyes

Explanation:
1. Phenolphthalein is made from phthalic anhydride and phenol, so it is a phthalein.

Teacher's Note:
1. Note the name reaction and write its equation once in your notebook.
2. Such one-step recall questions are common in the JEE and NEET style papers.

Question 9: The rose odour ester is formed by the action of HCOOH on
(a) pine oil
(b) olive oil
(c) geraniol
(d) turpentine oil
Show Answer & Explanation

Answer: (c) geraniol

Explanation:
1. Geranyl formate, from geraniol, has a rose fragrance.

Teacher's Note:
1. Count carbons before and after the reaction to avoid mistakes in chain-length changes.
2. Check whether the reagent is a reducing, oxidising or dehydrating agent before choosing the product.

Question 10: Which of the following is a dye?
(a) methyl orange
(b) orange I
(c) aniline yellow
(d) all of these
Show Answer & Explanation

Answer: (d) all of these

Explanation:
1. All three are azo dyes.

Teacher's Note:
1. Eliminate options by checking functional groups on both sides of the reaction.
2. Only one option will have the correct functional group and carbon skeleton.

Question 11: Which of the following is an example of a basic dye?
(a) alizarin
(b) malachite green
(c) indigo
(d) orange I
Show Answer & Explanation

Answer: (b) malachite green

Explanation:
1. Malachite green carries a cationic amino group and dyes through ionic attachment to anionic sites.

Teacher's Note:
1. Revise the physical properties such as hydrogen bonding and boiling points together with the chemistry.
2. Compare similar compounds in pairs when you are asked to rank them.

Question 12: Which of the following is a direct dye?
(a) phenolphthalein
(b) Congo red
(c) alizarin
(d) indigo
Show Answer & Explanation

Answer: (b) Congo red

Explanation:
1. Congo red is applied directly to cotton from a hot aqueous solution.

Teacher's Note:
1. Learn the reactivity order of acid derivatives: acyl chloride, anhydride, ester, amide.
2. Most questions of this type are solved by recalling the standard reagent and product pair.

Question 13: Which of the following is a vat dye and is often used in dyeing jeans?
(a) indigo
(b) alizarin
(c) picric acid
(d) crystal violet
Show Answer & Explanation

Answer: (a) indigo

Explanation:
1. Indigo is reduced to the soluble leuco form, applied to cloth and re-oxidised in air.

Teacher's Note:
1. Always link acid strength to the stability of the carboxylate ion.
2. Electron-withdrawing groups increase acidity and electron-donating groups decrease it.

Question 14: Which of the following is not a chromophore?
(a) -N=N-
(b) -NO
(c) -NO2
(d) -NH2
Show Answer & Explanation

Answer: (d) -NH2

Explanation:
1. -NH2 is an auxochrome.

Teacher's Note:
1. Note the name reaction and write its equation once in your notebook.
2. Such one-step recall questions are common in the JEE and NEET style papers.

Question 15: The compounds used to fix a dye to the fabric are known as
(a) mordants
(b) azeotropes
(c) bleaching agents
(d) lakes
Show Answer & Explanation

Answer: (a) mordants

Explanation:
1. A mordant binds to the fibre and reacts with the dye.

Teacher's Note:
1. Count carbons before and after the reaction to avoid mistakes in chain-length changes.
2. Check whether the reagent is a reducing, oxidising or dehydrating agent before choosing the product.

Question 16: Which one is a disperse dye?
(a) Congo red
(b) alizarin
(c) Celliton
(d) none of these
Show Answer & Explanation

Answer: (c) Celliton

Explanation:
1. Disperse dyes such as Celliton are applied as a fine dispersion to nylon, polyester and acetate fibres.

Teacher's Note:
1. Eliminate options by checking functional groups on both sides of the reaction.
2. Only one option will have the correct functional group and carbon skeleton.

Question 17: Malachite green, a direct dye for silk and wool, is made by condensing
(a) benzaldehyde and dimethylaniline
(b) carbonyl chloride and dimethylaniline
(c) benzene diazonium chloride with dimethylaniline
(d) none of the above
Show Answer & Explanation

Answer: (a) benzaldehyde and dimethylaniline

Explanation:
1. Two moles of dimethylaniline condense with benzaldehyde, and the product is oxidised.

Teacher's Note:
1. Revise the physical properties such as hydrogen bonding and boiling points together with the chemistry.
2. Compare similar compounds in pairs when you are asked to rank them.

Question 18: Fluorescein, a well-known dye, is obtained by the reaction of
(a) phthalic anhydride and phenol
(b) phthalic anhydride and resorcinol
(c) succinic acid and resorcinol
(d) phthalic anhydride and catechol
Show Answer & Explanation

Answer: (b) phthalic anhydride and resorcinol

Explanation:
1. Resorcinol condenses with phthalic anhydride in the presence of conc. H2SO4 or ZnCl2.

Teacher's Note:
1. Learn the reactivity order of acid derivatives: acyl chloride, anhydride, ester, amide.
2. Most questions of this type are solved by recalling the standard reagent and product pair.

Question 19: Indigo shows cis-trans isomerism. Which is the stable form of indigo?
(a) cis
(b) trans
(c) either cis or trans
(d) both of the above
Show Answer & Explanation

Answer: (b) trans

Explanation:
1. The trans form is stabilised by intramolecular hydrogen bonds.

Teacher's Note:
1. Always link acid strength to the stability of the carboxylate ion.
2. Electron-withdrawing groups increase acidity and electron-donating groups decrease it.

Question 20: Which is the wrong statement with regard to indigo?
(a) indigo was extracted in India from plants of the indigofera group
(b) the chemical structure of indigo was determined by Baeyer, a German chemist who also synthesised it
(c) indigo is a dark blue solid soluble in water giving a blue solution
(d) indigo is fixed to fabrics by the vat process
Show Answer & Explanation

Answer: (c) indigo is a dark blue solid soluble in water giving a blue solution

Explanation:
1. Indigo is insoluble in water, which is why it is applied as the soluble leuco form.

Teacher's Note:
1. Note the name reaction and write its equation once in your notebook.
2. Such one-step recall questions are common in the JEE and NEET style papers.

Question 21: Which of the following structures represents a colourless substance?
(a) azoxybenzene, C6H5-N=N(O)-C6H5
(b) azobenzene, C6H5-N=N-C6H5
(c) hydrazobenzene, C6H5-NH-NH-C6H5
(d) none of these
Show Answer & Explanation

Answer: (c) hydrazobenzene, C6H5-NH-NH-C6H5

Explanation:
1. Hydrazobenzene has no -N=N- chromophore, whereas azobenzene is red and azoxybenzene is yellow.

Teacher's Note:
1. Count carbons before and after the reaction to avoid mistakes in chain-length changes.
2. Check whether the reagent is a reducing, oxidising or dehydrating agent before choosing the product.

Question 22: Identify the wrong statement regarding alizarin.
(a) alizarin was extracted from the roots of the madder plant
(b) its chemical name is 1,2-dihydroxyanthraquinone
(c) it is fixed to fabrics using mordants such as aluminium sulphate, giving a fast red colour
(d) it is a red crystalline solid soluble in alkalies, and the solution imparts a red colour to fabrics
Show Answer & Explanation

Answer: (d) it is a red crystalline solid soluble in alkalies, and the solution imparts a red colour to fabrics

Explanation:
1. Alizarin gives a colour on fabric only through a metal mordant, which forms the lake, and not from a plain alkaline solution.

Teacher's Note:
1. Eliminate options by checking functional groups on both sides of the reaction.
2. Only one option will have the correct functional group and carbon skeleton.

Question 23: Methyl orange is an indicator in acid-alkali titration. It gives
(a) yellow colour in alkaline medium
(b) red colour in acid medium
(c) yellow colour in acidic medium
(d) yellow colour in alkaline medium and red colour in acidic medium
Show Answer & Explanation

Answer: (d) yellow colour in alkaline medium and red colour in acidic medium

Explanation:
1. The anion is yellow and the protonated form is red.

Teacher's Note:
1. Revise the physical properties such as hydrogen bonding and boiling points together with the chemistry.
2. Compare similar compounds in pairs when you are asked to rank them.

Question 24: A dye imparts a red colour on fabric. What colour of light was absorbed by the dye?
(a) blue
(b) red
(c) green
(d) orange
Show Answer & Explanation

Answer: (c) green

Explanation:
1. A substance looks red because it absorbs the complementary colour, green.

Teacher's Note:
1. Learn the reactivity order of acid derivatives: acyl chloride, anhydride, ester, amide.
2. Most questions of this type are solved by recalling the standard reagent and product pair.

Question 25: Which of the following is an azo dye?
(a) Orange-I
(b) phenolphthalein
(c) malachite green
(d) methylene blue
Show Answer & Explanation

Answer: (a) Orange-I

Explanation:
1. Orange I is a sulphonated azo dye.

Teacher's Note:
1. Always link acid strength to the stability of the carboxylate ion.
2. Electron-withdrawing groups increase acidity and electron-donating groups decrease it.

Question 26: An example of an anthraquinone dye is
(a) alizarin
(b) basic acid
(c) methylene blue
(d) phenolphthalein
Show Answer & Explanation

Answer: (a) alizarin

Explanation:
1. Alizarin is a hydroxyanthraquinone.

Teacher's Note:
1. Note the name reaction and write its equation once in your notebook.
2. Such one-step recall questions are common in the JEE and NEET style papers.

Free study material for Chemistry

Practice MCQs for JEE Chemistry Chemistry In Everyday Life

Chapter MCQs with Answers for JEE Chemistry

Explore reliable practice questions for Chemistry In Everyday Life tailored for JEE Chemistry learners. Use these multiple-choice formats to evaluate preparedness and strengthen problem-solving skills.

Expert Practice Material for JEE Chemistry

Cross-reference your completed choices with comprehensive NCERT solutions for JEE Chemistry to ensure absolute clarity across all sub-topics in this chapter.

Complete Your Chapter Revision

Wrap up your chapter revision by testing your knowledge against standard question formats. Everything on our platform is provided free of charge.

FAQs

Where can I access latest JEE Chemistry Chemistry In Everyday Life MCQs Set 05?

You can get most exhaustive JEE Chemistry Chemistry In Everyday Life MCQs Set 05 for free on StudiesToday.com. These MCQs for JEE Chemistry are updated for the 2026-27 academic session as per JEE examination standards.

Are Assertion-Reasoning and Case-Study MCQs included in the Chemistry JEE material?

Yes, our JEE Chemistry Chemistry In Everyday Life MCQs Set 05 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the JEE paper is now competency-based.

How do practicing Chemistry MCQs help in scoring full marks in JEE exams?

By solving our JEE Chemistry Chemistry In Everyday Life MCQs Set 05, JEE students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Chemistry.

Do you provide answers and explanations for JEE Chemistry Chemistry In Everyday Life MCQs Set 05?

Yes, Chemistry MCQs for JEE have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused JEE exams.

Can I practice these Chemistry JEE MCQs online?

Yes, you can also access online interactive tests for JEE Chemistry Chemistry In Everyday Life MCQs Set 05 on StudiesToday.com as they provide instant answers and score to help you track your progress in Chemistry.