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: 13/10/2020
12th Standard Chemistry English Medium Free Online Test Creative One Mark Questions with Answer Key - Part Two
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.
Proteins which act as biological catalysts are called ________
enzymes
hormones
vitamins
polymers
2.
The class of drugs used for the treatment of stress is _______
antihistamine
tranquilizens
antimicrobials
aminoglycosides
3.
In acidic solution an amino acid, when placed in an electric field__________
moves towards cathode
moves towards the anode
dissociates to cation and anion
does not move either towards the cathode or anode
4.
What would be the activation energy of a reaction when the temperature is increased from 27oC to 37oC?
534 kJ mol-1
53.4 kJ mol-1
5.34 kJ mol-1
None of these
5.
Pick the wrong one among the following
F2 - Yellow
Br2 - Red
Cl2 - Colourless
I2- Violet
6.
A solid with formula ABC3 would probably have, _______.
A at body centre, B at face centres and C at corners of the cube
A at corners of cube, B at body centre, C at face centre
A at corners of hexagon, B at centres of the hexagon and C inside the hexagonal unit cell
A at corner, B at face centre, C at body centre
7.
Which of the following oxide is amphoteric?
SiO2
CO2
SnO2
CaO
8.
Which one of the following exhibits highest oxidation state?
Ni
Mn
V
Zr
9.
Name the process by which elements such as germanium, silicon and gallium are refined.
Vapour phase method
Electrolytic refining
Zone refining
Van-Arkel method
10.
Naming the ligand in [M(en)2]n+ starts with _______.
Di
Bi
Bis
any of these
1.
(a)
enzymes
2.
(b)
tranquilizens
3.
(a)
moves towards cathode
4.
(d)
None of these
5.
(c)
Cl2 - Colourless
6.
(b)
A at corners of cube, B at body centre, C at face centre
7.
(c)
SnO2
8.
(b)
Mn
9.
(c)
Zone refining
10.
(c)
Bis
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
