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Published on: 02/09/2022
QB365 provides a detailed and simple solution for every Possible Book Back Questions in Class 12 Chemistry Subject - Chemistry In Everyday Life Biomolecules , English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
Download Tamil Nadu 12th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Chemistry Test
1.
Which is the monomer of neoprene in the following?
.JPG)
\(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{C} \equiv \mathrm{CH}\)
\(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}_{2}\)
.JPG)
2.
Regarding cross-linked or network polymers, which of the following statement is incorrect?
Examples are Bakelite and melamine
They are formed from bi and tri-functional monomers
They contain covalent bonds between various linear polymer chains
They contain strong covalent bonds in their polymer chain
3.
The polymer used in making blankets (artificial wool) is _______.
polystyrene
PAN
polyester
polythene
4.
Which of the following is a co-polymer?
Orlon
PVC
Teflon
PHBV
5.
6.
Which one of the following is a bio-degradable polymer?
HDPE
PVC
Nylon 6
PHBV
7.
Terylene is an example of _______.
polyamide
polythene
polyester
polysaccharide
8.
Nylon is an example of _______.
polyamide
polythene
polyester
poly saccharide
9.
Natural rubber has _______.
alternate cis- and trans-configuration
random cis- and trans-configuration
all cis-configuration
all trans-configuration
10.
Which one of the following structures represents nylon 6,6 polymer?
11.
12.
Drugs that bind to the receptor site and inhibit its natural function are called _______.
antagonists
agonists
enzymes
molecular targets
13.
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statement is not true.
dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.
Disinfectants harm the living tissues
A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant
Chlorine and iodine are used as strong disinfectants
14.
Which of the following is an analgesic?
Streptomycin
Chloromycetin
Asprin
Penicillin
1.
(a)
2.
(d)
They contain strong covalent bonds in their polymer chain
3.
(b)
PAN
4.
(d)
PHBV
5.
(d)
6.
(d)
PHBV
7.
(c)
polyester
8.
(a)
polyamide
9.
(c)
all cis-configuration
10.
(d)
11.
(a)
12.
(a)
antagonists
13.
(a)
dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.
14.
(c)
Asprin
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