GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 067

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 067

661). Which metal is involved in galvanisation process
A). copper
B). zinc
C). tin
D). lead

Answer: zinc

   
662). The alcohol used in the preparation of dynamite is
A). glycol
B). ethyl alcohol
C). glycerol
D). methyl alcohol

Answer: glycerol


   
663). Why there is a spluttering sound when water is sprinkled on hot oil?
A). boiling point is higher for water than that of oil
B). boiling point of oil is higher than that of water
C). oil and water do not mix
D). oil and water form a compound

Answer: boiling point of oil is higher than that of water


   
664). Which of the following is used as a dehydrating agent?
A). HCl
B). HNO3
C). HClO4
D). H2SO4

Answer: H2SO4



   
665). Wood is preserved from attack by termites by a material marketed as creosote oil, this is a mixture of
A). ethyl alcohol & phenol
B). tar and water
C). cresols
D). kerosene and tar

Answer: kerosene and tar



666). In gobar gas plant, which one of the following gases is released?
A). hydrogen
B). oxygen
C). methane
D). hydrogen sulphide

Answer: methane


   
667). The heat of neutralisation is constant for
A). strong acid - strong base
B). strong acid - weak base
C). weak acid - strong base
D). weak acid - weak base

Answer: strong acid - strong base


   
668). The strength of the solution of 4g of NaOH in 1 litre is
A). 0.01 N
B). 0.1 N
C). 0.2 N
D). 1 N

Answer: 0.01 N


   
669). The name Victor Meyer is associated with
A). distinction of 1°, 2°, 3° alcohols
B). distinction of 1°, 2°, 3° amines
C). distinction of aldehydes and ketones
D). none of these

Answer: distinction of 1°, 2°, 3° alcohols


   
670). A peptide is
A). polyene
B). polyamide
C). polyester
D). polyalcohol

Answer: polyester