Question

1) what favourable qualities given to gold when it is alloyed with copper or silver for making ornaments. 2)name the following. a) a lustrous liquid metal.? b) element which melts kept on palm

Answer 1

1) gold is a very soft metal . therefore to increase its strength it is alloyed with copper or silver for making ornaments so that they do not break easily.
2) a) murcury
b) gallium and cesium

Answer 2

The favourable qualities are given to gold when it is alloyed with copper or silver for making ornaments are given below.

1) Gold is a soft metal, therefore, copper or silver is usually added to gold to make it "harder and stronger". The presence of these metal decreases the brittleness of gold.

2) a) A luster liquid metal is a mercury that is the "only metal" exist in liquid state at room temperature.

b) Gallium element melts when we keep it in our palm as it has a low melting point.