Question

Give the correct order of initials T or F for the following statement: use 'T' if the statement is true and 'F' if it is false.
(i) In goldSchmidt thermite process Al act as a reducing agent
(ii) Mg is extracted by electrolysis of aq. solution of \[MgC{{l}_{2}}\].
(iii) Extraction of Pb is possible by carbon-reduction method
(iv) Red bauxite is purified by serpeck method
(A) TTTF
(B) TFFT
(C) FTTT
(D) TFTF

Answer 1

Hint: Analyze each of the points mentioned in the question and identify if the statement is true. Identify the reagents used in the goldSchmidt process. Similarly understand the electrolysis reaction of magnesium chloride. The formula of red bauxite will help you determine the method by which it can be purified. Understand the characteristics of lead ore and then determine if it can be reduced by the carbon-reduction method.

Complete step-by-step answer: We will analyse each of the given options and determine whether the statements mentioned are true or false as suggested in the hint above.
(i) In the goldSchmidt thermite process aluminium metal gets oxidized by another complementary metal. Since aluminum gets oxidized we can say that it acts as a reducing agent. So, the statement is true.
(ii) Magnesium (Mg) metal is obtained by the electrolysis of anhydrous magnesium chloride and not aqueous magnesium chloride. So, the statement is false.
(iii) Lead metal is obtained by the process of smelting which uses carbon as the reducing agent. So, the statement is true.
(iv) Serpeck method is used for the purification of white bauxite and not red bauxite. So, the statement is false. Based on the above observations we can conclude that the correct order is TFTF.

Therefore, the correct answer is option (D).

Note: It is important to know that red bauxite and white bauxite are considered to be two different species because of the impurities they possess. Red bauxite contains iron which gives the characteristic red colour to the solid. On the other hand, white bauxite contains silicon oxide as the impurity.