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TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set B
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TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set A
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Published on: 13/10/2020
12th Standard Chemistry English Medium Free Online Test Creative 1 Mark Questions - 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.
Recharging of lead storage battery involves ______.
anode is reduced to pb
cathode is reduced to pb
cathode is oxidised to pb
anode is oxidised to pbO2
2.
Which among the following sets of reactants will produce anisole?
HCHO, RMgX
C6H5ONa, CH3Br
C6H5CH3, CH3CoCI
3.
Which of the following is true regarding Freundlich adsorption isotherm equation?
Purely empirical
Valid only over a limited pressure range
The value of constants k and n varies with temperature
All the above
4.
For a reaction, 2A + B ⟶ 3C, The rate of appearance of C at time 't' is 1.2 x 10-4 mol L-1s-1. Identify the rate of reaction.
4 x 10-5mol L-1s-1
4.5 x 10-1mol L-1s-1
3.6 x 10-4 mol L-1s-1
None of these
5.
Which of the following halides of group 15 is not hydrolysed?
NF3
PF3
NI3
Both (a) and (b)
6.
Which of the following cannot be regarded as molecular solid?
Silicon carbide
AIN
Diamond
All the above
7.
The stability of +1 oxidation state among Al, Ga, In and Tl increases in sequence _______.
TI < In < Ga < Al
In < TI < Ga < Al
Ga < In < Al < TI
Al < Ga < In < TI
8.
Which of the following is wrong with respect to lanthanide contraction?
Decrease in ionic radii
Increase in tendency to act as reducing agents
Decrease in basic character
Resembles second and third row of d-block elements
9.
Which of the following is commonly used to produce foam in froth floatation process?
Pine oil
Cresol
NaCN
Xanthate
10.
The total number of electrons donated by ligands to platinum ion in [Pt(en)2CI2] is _______.
8
10
12
14
1.
(a)
anode is reduced to pb
2.
(c)
C6H5ONa, CH3Br
3.
(d)
All the above
4.
(a)
4 x 10-5mol L-1s-1
5.
(d)
Both (a) and (b)
6.
(d)
All the above
7.
(d)
Al < Ga < In < TI
8.
(b)
Increase in tendency to act as reducing agents
9.
(a)
Pine oil
10.
(c)
12
12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set B
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TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set A
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TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set C
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Computer Applications
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