Question

Spelter is the impure form of:
(a) $Zn$
(b) $Ag$
(c) $Cu$
(d) $Fe$

Answer 1

Hint: Spelter is an impure form of metal and is made up of by combining two or more metals i.e. it an alloy and it is the impure form of that metal which lies in the fourth period and twelfth group of the period table and has the atomic number as 30 and comes under the category of transition metals i.e. it is a d-block element. Now you can easily identify the element.

Complete step by step solution:
Spelter is actually a form of alloy ( the metal which is made up of mixing two different types of metals) which consists of equal parts of copper and zinc. So, spelter is impure Zinc and consists of three percent of lead as impurities along with other impurities.
Spelter zinc is obtained liquid during the process of reduction of ores ( reduction of ores is the process of reducing the metal oxides to metal).
Spelter zinc is very soft and it breaks off very easily and quickly and it is one of the most important forms of zinc. And it has low melting point ( the temperature at the which the substance begins to melt i.e. Changes its state from solid to liquid) and boiling points ( the temperature at the which the substance begins to boil i.e. Changes its state from liquid to gas).

Hence, option (a) is correct.

Note: Spelter zinc resembles the bronze but it has a lower melting point than the bronze and is also very softer than it. On the other hand, bronze is alloy of copper and tin and is yellow-brown in color.