12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A
Published on: 01/11/2019
Chemistry In Everyday Life
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.
A mixture of chloro xylenol and terpinecol acts as ______________.
antiseptic
antipyretic
antibiotic
analgesic
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.
The drug used to induce sleep is _______________.
paracetamol
bithional
chloroquine
equanil
6.
An example of anti-fertility drug is ____________.
novestrol
seldane
salvarsan
Chloramphenicol
7.
8.
Which one of the following is a bio-degradable polymer?
HDPE
PVC
Nylon 6
PHBV
9.
Which is the monomer of neoprene in the following?
\({ CH }_{ 2 }-\underset { \underset { CL }{ | } }{ C } { -CH=CH }_{ 2 }\)
\({ CH }_{ 2 }=CH-C\equiv CH\)
\({ CH }_{ 2 }=CH-CH={ CH }_{ 2 }\)
\({ CH }_{ 2 }-\underset { \underset { { CH }_{ 3 } }{ | } }{ C } { -CH=CH }_{ 2 }\)
10.
Terylene is an example of _______.
polyamide
polythene
polyester
polysaccharide
11.
Nylon is an example of _______.
polyamide
polythene
polyester
poly saccharide
12.
Natural rubber has _______.
alternate cis- and trans-configuration
random cis- and trans-configuration
all cis-configuration
all trans-configuration
13.
Which one of the following structures represents nylon 6,6 polymer?
14.
15.
Drugs that bind to the receptor site and inhibit its natural function are called _______.
antagonists
agonists
enzymes
molecular targets
16.
Saccharin, an artificial sweetener is manufactured from ____________.
cellulose
toluene
cyclohexene
starch
17.
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
18.
Dettol is the mixture of _____________.
Chloroxylenol and bithionol
Chloroxylenol and \(\alpha\)-terpineol
phenol and iodine
terpineol and bithionol
19.
Which of the following is an analgesic?
Streptomycin
Chloromycetin
Asprin
Penicillin
20.
Assertion: 2-methyl-1,3-butadiene is the monomer of natural rubber
Reason: Natural rubber is formed through anionic addition polymerisation.
Codes:
a) If both assertion and reason are true and reason is the correct explanation of assertion.
b) if both assertion and reason are true but reason is not the correct explanation of assertion.
c) assertion is true but reason is false.
d) both assertion and reason are false.
If both assertion and reason are true and reason is the correct explanation of assertion
if both assertion and reason are true but reason is not the correct explanation of assertion.
assertion is true but reason is false
both assertion and reason are false
1.
(a)
antiseptic
2.
(d)
They contain strong covalent bonds in their polymer chain
3.
(b)
PAN
4.
(d)
PHBV
5.
(d)
equanil
6.
(a)
novestrol
7.
(d)
8.
(d)
PHBV
9.
(a)
\({ CH }_{ 2 }-\underset { \underset { CL }{ | } }{ C } { -CH=CH }_{ 2 }\)
10.
(c)
polyester
11.
(a)
polyamide
12.
(c)
all cis-configuration
13.
(d)
14.
(a)
15.
(a)
antagonists
16.
(b)
toluene
17.
(a)
dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.
18.
(b)
Chloroxylenol and \(\alpha\)-terpineol
19.
(c)
Asprin
20.
c) assertion is true but reason is false.
12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு எடுத்துக்காட்டுகள் மற்றும் நெறிமுறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications PHP-உடன் MySQL-ஐ இணைத்தல் Sample Question Papers Study Material - QB365 Set A
Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
