Dry ice is
Crystal NaCl
Solid CO2
CO2
Liquid Nitrogen
The byproduct obtained in the manufacture of alcohol is
Oxygen
Hydrogen
Carbon
Carbon dioxide
A good conductor of electricity and heat is
Anthracite
Charcoal
Diamond
Graphite
Carbon dioxide dissolves in water to give
Carbolic acid
Hydrochloric acid
Boric acid
Carbonic acid
The name of C8H18 is
Hexane
Propane
Methane
Octane
Polymer of ethylene is
PVC
Polythene
Bakelite
Teflon
The nature Chemical bonding in diamond is
Covalent bond
Co-ordinate
Ionic
Metallic
The general formula of alkynes is
CnH2n
CnH2n+1
CnH2n+2
CnH2n-2
CO2 gas is cooled to form dry ice by sudden expansion. This is called
Einstein effect
Rutherford effect
Joule-Thomson effect
Bohr effect
Coke is obtained from coal by
Cracking
Distillation
Fractionation
Destructive distillation
