Question

Match the uses of the metal aluminium given in column I with its properties given in column II and mark the appropriate choice.

	Column I		Column II
(A)	Transmission cables	(i)	High malleability
(B)	Aircraft body	(ii)	High electrical conductivity
(C)	Packing industry	(iii)	High thermal conductivity
(D)	Utensils	(iv)	Light and tough alloys

• A. $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(i\right),\left(C\right)\to \left(iii\right),\left(D\right)\to \left(iv\right)$
• B. $\left(A\right)\to \left(iv\right),\left(B\right)\to \left(iii\right),\left(C\right)\to \left(ii\right),\left(D\right)\to \left(i\right)$
• C. $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iv\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(iii\right)$
• D. $\left(A\right)\to \left(iii\right),\left(B\right)\to \left(iv\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(ii\right)$

Answer 1

The correct option is C $\left(A\right)\to \left(ii\right),\left(B\right)\to \left(iv\right),\left(C\right)\to \left(i\right),\left(D\right)\to \left(iii\right)$

$\left(A\right)\text{Transmission cables}\to \left(i\right)\text{High electrical conductivity}$

Explanation:- Aluminium conductor steel-reinforced cable (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines. The outer strands are high-purity aluminium, chosen for its good conductivity, low weight and low cost. Thus, uses in transmission cables.

$\left(B\right)\text{Aircraft body}\to \left(i\right)\text{light and tough alloys}$

Explanation:- Lightweight with excellent corrosion resistance, the 7068 is one of the toughest alloys presently accessible. 7075 — Zinc is the main alloying element in 7075 aluminum. Its strength is similar to that of many types of steel, and it has good machinability and fatigue strength properties. Thus uses in aircraft industries.

$\left(C\right)\text{Packing Industry}\to \left(i\right)\text{High malleability}$

Explanation:- These properties have led to the extensive use of aluminium in various end markets such as packaging. Most of the aluminium used in packaging is in the form of rolled products, either as flexible packaging, such as fine foils, or as rigid packaging, such as the beverage can. Thus, used in packaging industry.

$\left(D\right)\text{Utensils}\to \left(i\right)\text{High thermal conductivity}$

Explanation:- Aluminium cooking utensils are safe. Probably. For most consumers the amount of aluminium absorbed into food from cooking utensils is unlikely to be harmful. When foods are cooked or stored in aluminium containers some of the aluminium may dissolve and be absorbed into the food. Thus, used in utensils.