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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
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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
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