Chemistry
Choose the answer from the list which fits the description.
[O2, NO2, H2S, C2H2, KBr]
(a) A colourless gas liberated on decomposition of nitric acid.
(b) Water is added to calcium carbide.
(c) Dilute hydrochloric acid is added to zinc sulphide.
Related Questions
Identify the functional group in the following organic compounds.
(a) Butene
(b) Propanoic acid
(a) State whether the following statements are true or false. Justify your answer.
(1) Electrolysis of molten lead bromide is considered to be a redox reaction.
(2) Copper is a good conductor of electricity but it is a non-electrolyte.
(b) State the reaction occurring at the anode during electrolysis of copper sulphate solution using a copper anode and platinum anode respectively.
For each of the substance given below, write the constituents and one use of the following alloys.
(a) Duralumin
(b) Solder
Calculate:
(a) A compound contains 69.5% oxygen, 30.5% nitrogen and its molecular weight is 92. Then what will be the molecular formula of the compound?
(b) If the empirical formula of a compound is CHO and its vapour density is 29, find the molecular formula of the compound.