GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 083

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 083

821). Air contains what percentage of oxygen?
A). 28
B). 37
C). 47
D). 21

Answer: 21


   
822). An atom of iron is ......... times as heavy as an atom of hydrogen
A). 23
B). 8
C). 55
D). 238

Answer: 238


   
823). Which is the gas emitted from the road vehicles causing pollution?
A). nitogen oxide
B). ozone
C). sulphur dioxide
D). carbon monoxide

Answer: carbon monoxide

   
824). Which of the following compounds is responsible for acid rain?
A). Nitrogen dioxide
B). Silicon dioxide
C). Sulphur dioxide
D). Carbon monoxide

Answer: Sulphur dioxide


   
825). Element discovered alter Mendeleef's tabulation is
A). aluminium
B). helium
C). germanium
D). iron

Answer: germanium



826). The food which gives an athelete instant energy is
A). glucose
B). butter
C). protein
D). vitamin

Answer: glucose


   
827). Which is an example of an antibiotic?
A). Sulphanilamide
B). Cortisone
C). Quinine
D). Streptomycin

Answer: Streptomycin


   
828). Which of the following gases is known laughing gas?
A). Nitrous oxide
B). Nitrogen dioxide
C). Nitrogen
D). Nitrogen monoxide

Answer: Nitrous oxide


   
829). The acid associated with the soaps is
A). sulphuric acid
B). fatty acid
C). hydrochloric acid
D). sulphonic acid

Answer: fatty acid


   
830). The substance used in making hairdye is
A). silver chloride
B). silver bromide
C). silver iodide
D). silver nitrate

Answer: silver nitrate