Triple bond exists in
Ethane
Ethyne
Methane
Propane
The gas evolved due to Photosynthesis is
Hydrogen
Nitrogen
Oxygen
Chlorine
Dry ice is
Crystal NaCl
Solid CO2
CO2
Liquid Nitrogen
The Refractive index of Carbon is
4.3
2.45
4.5
5.42
Combustion of methane gives
O2
H2
N2
The nature Chemical bonding in diamond is
Covalent bond
Co-ordinate
Ionic
Metallic
Calcium carbide on hydrolysis gives
Ethene
Benzene
A good conductor of electricity and heat is
Anthracite
Charcoal
Diamond
Graphite
The hydrocarbon used in welding is
Acetylene
CO2 gas is cooled to form dry ice by sudden expansion. This is called
Einstein effect
Rutherford effect
Joule-Thomson effect
Bohr effect
