GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 030

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 030

291). Inert gases are
A). miscible with water
B). not stable
C). chemically unreactive
D). chemically very active

Answer: chemically unreactive


   
292). Indigo is used in the
A). perfumery industry
B). pharmaceutical industry
C). dyeing industry
D). food industry

Answer: dyeing industry


   
293). Linseed cake is used for
A). washing purposes
B). feeding cattle
C). feeding newborns
D). filling crackers

Answer: feeding cattle


   
294). The process of leaching involves
A). the removal of dark colours
B). dissolving out a soluble compound
C). evaporation
D). filtration

Answer: dissolving out a soluble compound


   
295). The main use of 'magnesia' is as a/an
A). mild laxative
B). antiseptic
C). antibiotic
D). painkiller

Answer: mild laxative
   


296). Denatured alcohol
A). is a very pure form of alcohol
B). is unfit for drinking as it contains poisonous substances
C). contains coloured impurities .
D). is sweet to taste

Answer: is unfit for drinking as it contains poisonous substances


   
297). Ethyl alcohol is commonly made unfit for drinking by the addition of
A). potassium cyanide
B). methyl alcohol
C). chloroform
D). potassium chloride

Answer: methyl alcohol


   
298). Mordants are substances that
A). fix colours on fabrics
B). have a bleaching action
C). have the capacity of increasing the intensity of colour
D). are very hard solids

Answer: fix colours on fabrics


   
299). The sugar unit present in DNA is derived from
A). glucose
B). sucrose
C). fructose
D). deroxyribose

Answer: deroxyribose


   
300). Morphine is a drug under the classification
A). narcotics
B). antibiotics
C). antimalarials
D). antiseptics

Answer: narcotics