{ Online Quiz } Important Science Questions for TNPSC - 47

In this Quiz covered for important questions from various TNPSC Exams. TNPSC aspirants can check their Knowledge and to get chances to success. All the best...

1. A solution turns red litmus blue. Its pH would be_____?
   1.  5
   2.  7
   3.  9
   4.  11
   
   
2. Which of the following is a non metal that remains liquid at room temperature??
   1.  Phosphorous
   2.  Chlorine
   3.  Helium
   4.  Bromine
   
   
3. In the modern periodic table periods and groups are given. Periods and groups indicate____?
   1.  Rows and Columns
   2.  Columns and Rows
   3.  Line by Line
   4.  Rows only
   
   
4. The basis for periodic classification of the elements as suggested by Mosley is?
   1.  Atomic Weight
   2.  Valency
   3.  Physical and Chemical Properties
   4.  Atomic Number
   
   
5. Which metal is a constituent of haemoglobin?
   1.  Zn
   2.  Ca
   3.  Hg
   4.  Fe
   
   
6. Which of the following metals is purified by electrolytic refining?
   1.  Fe
   2.  Cu
   3.  Hg
   4.  Zn
   
   
7. The IUPAC name for acetic acid is _________?
   1.  ethanoic acid
   2.  methanoic acid
   3.  propanoic acid
   4.  butanonic acid
   
   
8. Choose the alkyne from the following?
   1.  Methane
   2.  Ethane
   3.  Propane
   4.  Acetylene
   
   
9. Screw gauge is an instrument used to measure the dimensions upto___?
   1.  0.01 cm
   2.  0.001 m
   3.  0.001 cm
   4.  0.001 mm
   
   
10. The unit used to measure long distance is_____?
    1.  Kilometer
    2.  Millimeter
    3.  Both (a) and (b)
    4.  Astronomical Unit
    
    

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