Q.1
While cooking, if the bottom of the vessel is getting blackened on the outside, it means that:
  • The food is not cooked completely
  • The fuel is not burning completely
  • The fuel is wet
  • The fuel is burning completely
Q.2
Cation is formed when
  • Atom gains electrons
  • Atom loses electrons
  • Proton is lost by the atom
  • Atom shares electrons
Q.3
The property of self-linkage among identical atoms to form long chain compounds is known
  • Superposition
  • Catenation
  • Isomerisation
  • Halogenation
Q.4
Which of the followings is the major constituent of the liquefied petroleum gas?
  • Ethane
  • Methane
  • Propane
  • Butane
Q.5
Covalent bonds
  • has low melting and boiling point
  • are generally poor conductors of electricity
  • has weak inter-molecular forces
  • All of the above
Q.6
Atomic No. of Carbon,No. of Electron,No. of Proton,No of electron is
  • 12
  • 7
  • 6
  • 4
Q.7
Benzene Formula is
  • C6H12
  • C6H8
  • C8H6
  • C6H6
Q.8
Allotrope of carbon and their state are
  • Graphite,Hydrogen/Solid and Liquid
  • Diamond and Graphite/Amorphous and Liquid
  • Graphite and Diamond/Crysalline and Amorphous
  • Diamond and Graphite/Amorphous and Chlorised
Q.9
Prefix But is used when no. of carbon are
  • 1
  • 3
  • 4
  • 5
0 h : 0 m : 1 s