GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 082

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 082

811). lce is ........ compound
A). ionic
B). metallic
C). molecular
D). covalent

Answer: covalent


   
812). When silver tarnishes in air it turns black. This indicates that there is .......... in air.
A). helium
B). carbon dioxide
C). carbon monoxide
D). hydrogen sulphide

Answer: hydrogen sulphide


   
813). What is the black board chalk made of?
A). lime
B). soft and sticky clay
C). petroleum waste
D). calcium chloride

Answer: lime

   
814). The substance that is not polymer is
A). nylon
B). cellulose
C). starch
D). glucose

Answer: glucose

   
815). The main active ingredient of tea and coffee is
A). nicotine
B). chlorophyll
C). caffeine
D). aspirin

Answer: caffeine


816). Riboflavin is a/an
A). vitamin
B). plant
C). antibiotic
D). pigment

Answer: vitamin


   
817). The vitamin responsible for blood clotting is
A). A
B). C
C). B12
D). K

Answer: K


   
818). The most abundantly found metal in the human body is
A). iron
B). sodium
C). calcium
D). magnesium

Answer: calcium


   
819). Steel contains
A). 0.1 to 2% carbon
B). 5 to 10% carbon
C). no carbon
D). 20% carbon

Answer: 0.1 to 2% carbon


   
820). Morphine is a/an
A). stimulant
B). analgesic
C). transquiliser
D). hypnotic

Answer: stimulant