1. Which of the following does not undergo sublimation?
(a) Iodine
(b) Ammonium Chloride
(c) Sodium Chloride
(d) Camphor
2.Dryer of washing machine is based on the principle of ?
(a) Chromatography
(b) Centrifugation
(c) Evaporation
(d) Distillation
3.Which hydrocarbon is not present in LPG?
(a) Decane
(b) Propane
(c) Butane
(d) Pentane
4.What is the atomicity of Phosphorous?
(a) Monoatomic
(b) Diatomic
(c) Triatomic
(d) Tetra-atomic
5.Find the correct sequence of the father of Proton, Electron, Neutron?
(a) Chadwick, Rutherford, J.J Thomson
(b) Rutherford, J.J Thomson, Chadwick
(c) J.J Thomson, Rutherford, Chadwick
(d) E. Goldstein, J.J Thomson, Chadwick
6.Which is least reactive element?
(a) Hydrogen
(b) Sodium
(c) Helium
(d) Lithium
7.Which of the following is not the property of ionic compound?
(a) Good conductor in aqueous solution
(b) Low boiling point
(c) High melting point
(d) Non-inflammable
8.Which of the following is the property of covalent compound?
(a) Bad conductor of electricity
(b) High boiling point
(c) Good conductor in aqueous
(d) High melting point solation
9.Who discovered Radioactivity?
(a) E Goldstein
(b) Rutherford
(c) Neil Boher
(d) A.H. Becquerel
10. Which one is the lightest?
(a) Proton
(b) Neutron
(c) Electron
(d) None of the above
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