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Group 1 TNPSC Question Paper - 16th February 2013 - Prelims
1.
An alkaline earth metal M forms covalent compounds. It forms water soluble sulphate MSO4 and water insoluble hydroride M(OH)2 which is a amphoteric in nature. The metal M is
Answer : B. Beryllium
2.
Consider the following statements:
I. Diamond is bad conductor of electricity
II. Graphite is used for making electrodes of electric furnaces.
III. Solid carbon monoxide is known as dry ice
IV. Carbondioxide turns moist red litmus slightly bluish.
Which of the above statement(s) is/are correct?
Answer : C. I and II
3.
Match List I with List II correctly and select your answer using the codes given below:
| List I (Ores) | List II (Metals) |
|---|---|
| a) Haematite | 1) Lead |
| b) Cinnabar | 2) Iron |
| c) Calamine | 3) Mercury |
| d) Galena | 4) Zinc |
Answer : A. 2 3 4 1
4.
Differentiate Teratogen from Mutagen
A. Teratogen is a chemical that causes malformation in an embryo or foetus while Mugagen causes change in genetic material of the adult B. Teratogen causes cancer while Mutagen causes mutation C. Teratogen causes heart failure while Mutagen causes is carcincgenic D. Teratogen causes abnormality in the adults while Mutagen affects infants
Answer : A. Teratogen is a chemical that causes malformation in an embryo or foetus while Mugagen causes change in genetic material of the adult
5.
Columns of Bertini in the kidneys of mammals are formed as extensions of
Answer : B. Cortex into medulla
6.
Which one of the following is/are correctly matched?
(i) Arteritis - inflammation of artery
(ii) Occlusion - Closure of blood vessel
(iii) Thrombectomy - Removal of blood clot from a blood vessel
A. All the three are correct B. Only (i) is correct C. Only (ii) is correct D. Only (iii) is correct
Answer : A. All the three are correct
7.
Which of the following statements in not associated with biocommunication in animals?
A. They are signs through chemical moleclues B. It is a mechanism of vocalization as seen between competing bird species C. Associated with social conflict of organism between same species D. It is production of pheromones as between various species of insects
Answer : C. Associated with social conflict of organism between same species
8.
Assertion (A) : On rainy day small oil film on water show brilliant colours.
Reason (R) : This is due to polarization of light.
A. Both (A) and (R) are individually true and (R) is the correct explanation of (A) B. Both (A) and (R) are individually true and (R) is not the correct explanation of (A) C. (A) is true but (R) is false D. (A) is false but (R) is true
Answer : C. (A) is true but (R) is false
9.
A particle motion is given by distance - time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point.
Answer : C. R
10.
Match List I with List II correctly and select your answer using the codes given below:
| List I (Culture Realms) |
List II (Culture Areas) |
|---|---|
| a) The occidental | 1) Korea |
| b) The main Islamic | 2) Anglo-America |
| c) The Indic | 3) Jordan |
| d) East Asia | 4) Nepal |
Answer : B. 2 3 4 1
