Free MCQs & Online Quiz Practice for Exams

Q: Which one is true for DDT?

A) An antibiotic

B) Non-pollutant

C) An antiseptic

D) Non-degradable

Q: The term "black gold" is used for:

A) Coal

B) Carbon black

C) Petroleum

D) Coal tar

Q: All are petrochemicals except:

A) Ethylene oxide

B) Propylene

C) Cellulose

D) Cyclohexane

Q: Multipart adhesive is an example of:

A) Reactive adhesives

B) Contact adhesives

C) Hot adhesives

D) Pressure sensitive adhesives

Q: Nail polish removers are mainly composed of:

A) Propyne

B) Propanone

C) Propanal

D) Propene

Q: In the process of cracking:

A) Small molecules unite together

B) Large molecules unite together

C) Large molecules are broken down

D) Small and large molecules unite together

Q: Rexine is the manipulated form of:

A) Plastic (PVC)

B) Nylon

C) Lipstick

D) Nail polish

Q: Identify the petrochemical which is not obtained from benzene:

A) Alkyl benzenes

B) Cyclohexane

C) Nitrobenzene

D) Vinyl chloride

Q: Which of the following is a condensation polymer?

A) PVC

B) Polythene

C) Nylon

D) None of these

Q: (-NH–(CH₂)₆–CONH–CO–(CH₂)₄–CO-) is an example of:

A) Addition polymer

B) Thermosetting polymer

C) Condensation copolymer (Nylon-6,6)

D) Homo-polymer

Q: Which one of the following is a synthetic polymer?

A) Cellulose

B) Starch

C) Silk

D) Polythene

Q: Hair dyes are commonly classified into groups:

A) 3

B) 4

C) 5

D) 6

Q: All are synthetic adhesives except:

A) Casein glues

B) Polyurethanes

C) Cyanoacrylates

D) Polyimides

Q: Acrylate base polymers are:

A) Drying adhesives

B) Pressure sensitive adhesives

C) Contact adhesives

D) Hot adhesives

Q: Which one of the following is not a secondary pollutant?

A) O₃

B) CO

C) SO₂

D) CO₂

Q: The coldest region of atmosphere is:

A) Troposphere

B) Thermosphere

C) Stratosphere

D) Mesosphere

Q: Ozone layer in upper atmosphere is being destroyed by:

A) Chlorofluorocarbons

B) SO₂

C) Smog

D) Photochemical oxidant

Q: Drained sewage has BOD:

A) More than that of water

B) Less than that of water

C) Equal to that of water

D) None of the above

Q: Photochemical smog is primarily caused by:

A) CO

B) CO₂

C) O₃

D) NO₂

Q: Result of ozone hole is:

A) Acid rain

B) Global warming

C) Increased CO₂

D) Greater exposure of Earth to UV