GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 094

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 094

931). The bell metal contains
A). Cu and Zn
B). Cu and Sn
C). Sn and Zn
D). Ni and Zn

Answer: Cu and Sn


   
932). Blue vitriol is
A). ZnSO47H2O
B). NiCl26H2O
C). FeSO47H2O
D). CuSO45H2O

Answer: CuSO45H2O


   
933). Oxidation involves
A). gain in electrons
B). gain of hydrogen
C). loss of electron
D). combustion

Answer: loss of electron

   
934). An aqueous solution of pH zero is
A). acidic
B). basic
C). neutral
D). none of the above

Answer: acidic


   
935). Economical method of separation of essential oils from natural sources is possible by
A). steam distillation
B). solvent extraction
C). fractional distillation
D). fractional crystallisation

Answer: fractional distillation


936). Dilantin sodium is an
A). antihypertensive
B). anticonvulsant
C). anti-inflammatory
D). antimirobial

Answer: anti-inflammatory

   
937). One of the following is a heart drug
A). Dizioxin Isonex
B). Lasix
C). Isonex
D). Brufen

Answer: Dizioxin Isonex

   
938). Nylon 66 is prepared from
A). phenol and formaldehyde
B). ethylene glycol and phthalic acid
C). hexamethylene diamine and adipic acid
D). ethylene glycol and adipic acid

Answer: hexamethylene diamine and adipic acid


   
939). The formula of tetra chlorodiamine platinum (iv) is
A). [Pt(NH3)2Cl4]Cl2
B). K4[Pt(NH3)2Cl4]
C). [Pt(NH3)2]Cl4
D). [Pt(NH3)2Cl4]

Answer: [Pt(NH3)2]Cl4


   
940). The co-ordination number of atoms in BCC lattice is
A). 12
B). 6
C). 8
D). 4

Answer: 6