GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 099

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 099

981). Rayon is
A). natural rubber
B). artificial silt
C). natural silk
D). artificial rubber

Answer: artificial silt

   
982). The important buffers present in the blood is
A). CH3COONH4
B). CH3COOH/CH3COONa
C). H2CO3/HCO3
D). NaH2PO4/Na2HPO4

Answer: NaH2PO4/Na2HPO4


   
983). Which is true of the following?
A). All known elements are present in nature
B). Elements can be solids or liquids or gases
C). All elements react with one another
D). All compounds contain carbon

Answer: Elements can be solids or liquids or gases


   
984). Phytochrome is
A). Chromopeptide
B). Dipedtide
C). Fatty acid
D). Nucleric acid

Answer: Chromopeptide


   
985). Gobar gas is a mixture of
A). CH4CO and H2
B). CO and N2
C). CO and H2
D). None of these

Answer: CH4CO and H2




986). Which chemical is used for preserving the biological specimens in the laboratories?
A). phenol
B). benzaldehyde
C). acetaldehyde
D). formaldehyde

Answer: formaldehyde

   
987). Quarts is
A). Sodium silicate
B). Alumina
C). Calcium silicate
D). Silica

Answer: Calcium silicate


   
988). Which is the first man made element?
A). Sc
B). Os
C). Tc
D). Hg

Answer: Tc


   
989). What is not correct about colloids?
A). they cannot be seen by naked eyes
B). they scatter light
C). they keep moving constantly
D). their stability is increased by adding an electrolyte

Answer: their stability is increased by adding an electrolyte


   
990). The raw material for the manufacture of paper is
A). paparerine
B). starch
C). cellulose
D). none of the above

Answer: cellulose