Chemical Bonding — Chemistry STD 10 — Question

The property by virtue of which the compound has the same molecular formula but different structural formulae.

The list of some organic compounds is given below:
Ethanol, ethane, methane, ethyne and ethene
From the above list, name a compound:
Which decolourises bromine solution in carbon tetrachloride?

How do the boiling point and melting point change in the homologous series of alcohols?

Calculate the weight/mass of: 0.25-gram atom of calcium

Give one word or phrase for the following:
Formation of ions from molecules.

State how would you prepare copper (II) oxide from
copper sulphate

Give balanced chemical equation to prepare the following salt :
Copper chloride using copper carbonate.

An indicator which turns pink in alkaline solution and colourless in an acid solution.

Name the process used for the enrichment of sulphide ore.

An unsaturated hydrocarbon used for welding purposes.