In which of the following processes, is vanadium pent oxide
used as a catalyst?
1 Contact process
2 Haber’s process
3 Solvay process
4 None of these
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Which of the following re synthetic rubbers? 1.Thiokol 2.Isoprene 3.Neoprene 1 1 and 2 2 2 and 3 3 1 and 3 4 1,2 and 3
What are luminous irregular nebulae?
Which one of the following is the petroleum wax? 1 Bees wax 2 Carnauba wax 3 Paraffin wax 4 Jojoba wax
Which of the following gases is not known as green house gas? 1 Carbon dioxide 2 Methane 3 Nitruous oxide 4 Hydrogen
4 Answers ACIO, Infosys, ptet,
What are cosmic rays?
The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese
What are comets?
The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon
Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
Bleaching powder is made from 1 Sulphur dioxide and gypsum 2 Chlorine and charcoal 3 Soda ash and lilme 4 Lime and chlorine
Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology
atoms are composed of Electrons & Protons or Electrons & Protons ?