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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Sodium carbonate crystals lose water molecules. This property is called
(a)
efflorescence
(b)
hygroscopy
(c)
deliquescence
(d)
none of these
2. Oxidation is defined as
(a)
Loss of protons
(b)
Gain of protons
(c)
Gain of electrons
(d)
Loss of electrons
3. Which of the following is moderate conductor of electricity?
(a)
Silica
(b)
Graphite
(c)
Diamond
(d)
Carborundum
4. A bond formed by sharing of electrons between atoms of the elements is called
(a)
Ionic bond
(b)
Coordinate bond
(c)
Covalent bond
(d)
None of these
5. The value of Planck’s constant is
(a)
6.62 × 10
-34
erg.s
(b)
6.62 × 10
-34
J
(c)
6.62 × 10
-34
Js
(d)
None of these
6. Rate of diffusion of a gas is
(a)
inversely proportional to the square of its molecular molecular mass
(b)
directly proportional to the square of its molecular mass
(c)
directly proportional to its molecular mass
(d)
directly proportional to its density
7. At constant temperature, the product of pressure and volume of a given amount of a gas is constant. This is
(a)
Pressure law
(b)
Boyle’s law
(c)
Charles law
(d)
Gay-Lussac law
8. The acid used in lead storage battery is
(a)
Oxalic acid
(b)
HNO
3
(c)
HCL
(d)
H
2
SO
4
9. Which element of the following does not exist in liquid state at room temperature?
(a)
Ga
(b)
Hg
(c)
Br
(d)
Na
10. Amino acids present in insulin are
(a)
21
(b)
30
(c)
51
(d)
61
