GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 102

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 102

1011). Elements which form often coloured compounds are
A). noble gases
B). halogens
C). alkali metals
D). transition elements

Answer: transition elements


   
1012). Which one of the following does not exhibit allotropy?
A). Carbon
B). Tin
C). Phosphorous
D). Neen

Answer: Neen


   
1013). The metal used in air craft structure is
A). Bauxite
B). Duralumin
C). Magnalium
D). Haematite

Answer: Duralumin


   
1014). Bleaching powder is used mostly
A). for preparing chlorine
B). for preparing hydrochloric acid
C). for preparing sodium bisulphite
D). for sterilisinq water

Answer: for sterilisinq water


   
1015). DDT is a/an
A). insecticide
B). pesticide
C). ingredient in the preparation of soap
D). biological specimen preservative

Answer: insecticide



1016). Neutron was discovered by
A). J.J. Thomson
B). Goldstein
C). Neil Bohr
D). Chadwick

Answer: Chadwick


   
1017). Gas which gives dense white fumer with ammonia is
A). Hydrogen chloride
B). Hydrogen sulphide
C). Hydrogen iodide
D). Hydrogen fluoride

Answer: Hydrogen chloride


   
1018). The radioactive element among the following is:
A). radium
B). argon
C). radon
D). krypton

Answer: radium


   
1019). Bone ash is
A). calcium phosphide
B). calcium phosphate
C). calcium dihydrogen phosphate
D). calcium oxide

Answer: calcium phosphate


   
1020). One gram mole of all gases at NTP occupies
A). 11.2 lit.
B). 22.4 lit.
C). 44.8 lit.
D). 89.6 lit.

Answer: 22.4 lit.