GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 086

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 086

851). The growing plants need which of the following elements in largest quantity?
A). calcium
B). nitrogen
C). ammonia
D). phosphorus

Answer: nitrogen


   
852). Sodium thiosulphate is called
A). bleaching powder
B). hypo
C). washing soda
D). baking soda

Answer: hypo


   
853). Formalin is used as
A). fuel
B). anesthetic
C). solvent
D). preservative

Answer: preservative


   
854). Among the following an anaesthetic is
A). methane
B). ethane
C). chloroforrn
D). carbon tetrachloride

Answer: chloroforrn


   
855). Which one of the following Is an example of a carcinogenic compound?
A). Ethyl alcohol
B). Saccharin
C). Carbon disulphide
D). Chloroform

Answer: Chloroform



856). The main constituent of glass is
A). calcium silicate
B). sodium carbonate
C). silicon tetra fluoride
D). calcium phosphate

Answer: calcium silicate


   
857). The rich source nicotine is
A). coffee
B). tea
C). tobacco
D). poppy

Answer: tobacco


   
858). The ozone layer in the upper atmosphere is formed due to the following reaction
A). carbon dioxide and air
B). carbon dioxide and oxygen
C). oxygen and UV-rays
D). infrared rays and UV-rays

Answer: oxygen and UV-rays


   
859). The relative mass of an electron is
A). 1
B). 0.025
C). 1/1840
D). 1.5

Answer: 1/1840



   
860). Maximum 14 electrons are accommodated in sub shell
A). s
B). p
C). d
D). f

Answer: f