Brass is an alloy of which of the following pairs of metals ?

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Q: 4 (CAPF/2008)
Brass is an alloy of which of the following pairs of metals ?

question_subject: 

Geography

question_exam: 

CAPF

stats: 

0,79,137,27,15,95,79

keywords: 

{'brass': [0, 0, 1, 1], 'metals': [1, 2, 2, 7], 'alloy': [0, 0, 3, 5], 'copper': [1, 0, 1, 1], 'aluminium': [1, 0, 3, 2], 'tin': [0, 0, 0, 1], 'zinc': [1, 0, 0, 2], 'chromium': [2, 1, 9, 1]}

Option 1: Aluminium and Copper

Aluminium and copper are not the metals that make up brass. Brass is primarily composed of copper and zinc, with zinc being the main alloying element.

Option 2: Chromium and Tin

Chromium and tin are not the metals that make up brass. Brass is mainly composed of copper and zinc.

Option 3: Copper and Tin

While copper is indeed one of the metals that make up brass, tin is not the other metal. Tin forms an alloy known as bronze when combined with copper, not brass.

Option 4: Copper and Zinc

This is the correct answer. Brass is an alloy made by combining copper and zinc. The ratio and amounts of copper and zinc determine the properties and characteristics of the specific type of brass.

In conclusion, brass is an alloy consisting of copper and zinc, making option 4 the correct choice.