GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 058

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 058

571). “The properties of elements are periodic function of their atomic weights”. This statement was given by
A). Bohr
B). Dobereiner
C). Mendeleef
D). Lother-Meyer

Answer: Mendeleef


   
572). The catalyst used in the conversion of white phosphorous to red phosphorous is
A). carbon
B). di ammonium phosphate
C). iodine
D). sulphur

Answer: iodine

   
573). Slaked lime is CaO
A). d^2
B). CaCO3
C). Ca(OH)
D). CaOCl2

Answer: Ca(OH)



   
574). A preservative for biological specimen is
A). acetaldehyde
B). ethyl alcohol
C). formaldehyde
D). chloroform

Answer: formaldehyde


   
575). Maltase is
A). an organic compound
B). an inorganic compound
C). an enzyme
D). a sugar

Answer: an enzyme



576). The compound with a functional group COOH is called
A). alcohol
B). aldehyde
C). carboxylic acid
D). ester

Answer: carboxylic acid


   
577). The number of isomers for C2H6O is
A). one
B). two
C). three
D). four

Answer: one


   
578). Air contains maximum amount of
A). oxygen
B). hydrogen
C). nitrogen
D). carbon dioxide

Answer: nitrogen

   
579). Strong reducing agent is
A). H2S
B). HCl
C). KMnO4
D). K2CrO4

Answer: KMnO4



   
580). Indane gas is
A). butane + propane
B). butane + methane
C). methane + propane
D). methane + ethane

Answer: butane + propane