Chemistry
An organic compound has an empirical formula (CH2O). Its vapour density is 45. Then what will be the molecular formula of the compound?
Related Questions
An element 'Y' is in II period and group 16 of the periodic table.
Answer the following questions:
(a) Is it a metal or a non-metal?
(b) Write the valence electrons present in the element Y.
(c) What is its valency?
Define:
(a) Alkanes
(b) Alkenes
State the conditions required for the following reactions.
(a) Conversion of ammonia to nitric oxide in presence of air.
(b) Conversion of hydrogen chloride to chlorine.
(c) Conversion of sodium bisulphate to sodium sulphate.
(a) State whether the following statements are True or False. Justify your answer.
- Weak acids have low electrical conductivity.
- The concentration of hydrogen ions is equal in strong acids and weak acids.
(b) Calculate the percentage of sodium (Na) in Na2B4O7.10H2O.