Free tnpsc model questions Online Test - MeritNotes

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1. –CHO is the functional group of
 
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2. The most abundantly occurring element in the earth crust is
 
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3. Permanent hardness of water may be removed by the addition of
 
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4. Cotton fibers are made of
 
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5. Hydrometer is an instrument
 
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6. _____ synthetic fiber is known as artificial silk.
 
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7. H2O is the chemical formula of
 
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8. In all biological compounds the most fundamental element is
 
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9. The location and energy of an electron in an atom can be specified by
 
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10. What is the average pH value of the milk?
 
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  • (d) 
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