JEE Main Chemistry In Everyday Life Previous Year Questions with Solutions

Chemistry in everyday life JEE Main Previous Year Questions with Solutions are given here. Chemistry is the branch of science which deals with the investigation of the properties and changes of matter. From the way how our body exchanges oxygen to how our universe was created, all have a side of chemistry associated with it. Chemicals are used in our food as preservatives, binding agents, flow stabilizers, artificial sweeteners, etc.

The important topics in chemistry in everyday life are drugs, preservatives, flavours, antioxidants, sweetening agents and cleansing action of soaps and detergents, etc. BYJU’S provides accurate solutions prepared by our specialized experts. Students can easily download the questions and solutions in PDF format.

 

Download Chemistry In Everyday Life Previous Year Solved Questions PDF

 

JEE Main Previous Year Solved Questions on Chemistry In Everyday Life

1. Which of the following could act as a propellant for rockets?

(1) Liquid oxygen + liquid argon

(2) Liquid hydrogen + liquid oxygen

(3) Liquid nitrogen + liquid oxygen

(4) Liquid hydrogen + liquid nitrogen

Solution:

Oxygen is a strong supporter of combustion. Liquid hydrogen has low mass and high enthalpy of combustion. Liquid hydrogen and liquid oxygen are used as excellent fuel for rockets.

Hence option (2) is the answer.

2. Which one of the following nitrates will leave behind a metal on strong heating?

(1) Copper nitrate

(2) Manganese nitrate

(3) Silver nitrate

(4) Ferric nitrate

Solution:

AgNO3 → Ag +NO2 (½) O2

Hence option (3) is the answer.

3. Insulin production and its action in the human body are responsible for the level of diabetes. This compound belongs to which of the following categories?

(1) A co- enzyme

2) An antibiotic

3) An enzyme

4) A hormone

Solution:

Insulin is a hormone.

Hence option (4) is the answer.

4. The distillation technique most suited for separating glycerol from spent-lye in the soap industry is:

(1) Distillation under reduced pressure

(2) Simple distillation

(3) Fractional distillation

(4) Steam distillation

Solution:

The distillation technique most suited for separating glycerol from spent-lye in the soap industry is distillation under reduced pressure. The boiling point of glycerol is 2900C at atmospheric pressure. At this temperature, it decomposes before it distils. Therefore, the distillation is carried out under reduced pressure by applying vacuum which decreases the boiling temperature of glycerol and thus preventing its decomposition.

Hence option (1) is the answer.

5. Which one of the following types of drugs reduces fever?

(1) Analgesic

(2) Antipyretic

(3) Antibiotic

(4) Tranquiliser

Solution:

Antipyretics are used to reduce the temperature.

Hence option (2) is the answer.

6. Which of the following is an anionic detergent?

(1) Sodium stearate

(2) Sodium lauryl sulphate

(3) Cetyltrimethyl ammonium bromide

(4) Glyceryl oleate

Solution:

CH3(CH2)10CH2OSO3Na+ is sodium lauryl sulphate. It is an anionic detergent.

Hence option (2) is the answer.

7. Which of the following compounds is not an antacid?

(1) Aluminium hydroxide

(2) Cimetidine

(3) Phenelzine

(4) Ranitidine

Solution:

Phenelzine is used as antidepressant. Aluminium hydroxide, Cimetidine and ranitidine are now used as antacids.

Hence option (3) is the answer.

8. Aspirin is known as

(1) Acetyl salicylic acid

(2) Phenyl salicylate

(3) Acetyl salicylate

(4) Methyl salicylic acid

Solution:

Aspirin is known as Acetyl salicylic acid.

Hence option (1) is the answer.

9. Regular use of which of the following fertilizers increases the acidity of soil?

(1) Potassium nitrate

(2) Urea

(3) Superphosphate

(4) Ammonium sulphate

Solution:

Ammonium sulphate is a salt of strong acid and weak base. It produces H+ ions on hydrolysis. This helps to increase the acidity of the soil.

Hence option (4) is the answer.

10. What is DDT among the following?

(1) Greenhouse gas

(2) A fertilizer

(3) Biodegradable

(4) Non-biodegradable pollutant

Solution:

DDT is non-biodegradable pollutant.

Hence option (4) is the answer.

11. A red solid is insoluble in water. However it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of metal appear on the cooler parts of the test tube. The red solid is

(1) Hgl2

(2) HgO

(3) Pb304

(4) (NH4)2Cr207

Solution:

On heating HgI2 decomposes as HgI → Hg + I2

Hence option (1) is the answer.

12. Which one of the following statements is correct?

(1) From a mixed precipitate of AgCl and Agl, ammonia solution dissolves only AgCl

(2) Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution

(3) On boiling at solution having K+, Ca2+ and HC03~ we get precipitate of K,Ca(C03).,

(4) Manganese salts give a violet borax bead test in the reducing flame.

Solution:

AgCl + 2NH3 → Ag(NH3)2 Cl

Hence option (1) is the answer.

13. Which of the following nuclear reactions will generate an isotope?

(1) neutron particle emission

(2) positron emission

(3) a-particle emission

(4) p -particle emission

Solution:

Neutron particle emission will generate an isotope.

Hence option (1) is the answer.

14. The reason for “drug induced poisoining” is

(1) Binding reversibly at the active site of the enzyme

(2) Bringing conformational changes in the binding site of enzyme

(3) Binding at the allosteric sites of the enzyme

(4) Binding irreversibly to the active site of the enzyme

Solution:

Binding at the allosteric sites of the enzyme is the reason for drug-induced poisoning.

Hence option (3) is the answer.

15. Which of the following is a bactericidal antibiotic?

(1) Ofloxacin

(2) Tetracycline

(3) Chloramphenicol

(4) Erythromycin

Solution:

Ofloxacin is a bactericidal antibiotic.

Hence option (1) is the answer.

Also Read:-

Chemistry in Everyday Life

FAQ Everyday Life Chemistry JEE