Question

2) (a) Define the term 'alloy' and 'amalgam'. Name the alloy used for welding electric
wires together. What are its constituents.
(b) How can sodium be obtained from NaCl?​

Answer 1

(a) An alloy is a homogeneous mixture of two or more metals or a metal and a non-metals, mixed in the molten state. Amalgam is an alloy of a metal with mercury.

The alloy used for welding electric wires are aluminium and copper.

b) Sodium metal and chlorine gas can be obtained with the electrolysis of molten sodium chloride.

Electrolysis of aqueous sodium chloride yields hydrogen and chlorine, with aqueous sodium hydroxide remaining in solution.

Answer 2

Answer:

(a) An alloy is a homogeneous mixture of two or more metals or a metal and a non-metals, mixed in the molten state.

Amalgam is an alloy of a metal with mercury.

The alloy used for soldering electrical wires is solder. Solder is an alloy of lead and tin. p

Lead-free solders in commercial use may contain tin, copper, silver, bismuth, indium, zinc, antimony, and traces of other metals. Most lead-free replacements for conventional 60/40 and 63/37 Sn-Pb solder have melting points from 50 to 200 °C higher, though there are also solders with much lower melting points.

(b) Sodium metal and chlorine gas can be obtained with the electrolysis of molten sodium chloride. Electrolysis of aqueous sodium chloride yields hydrogen and chlorine, with aqueous sodium hydroxide remaining in solution.

I Hope This Answer Helps You...