Bronze is often used to make statues and medals whereas brass is used in making utensils, scientific apparatus and cartridges. Both brass and bronze are copper containing alloys, yet they differ in their chemical composition for additionally containing:

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Q: 38 (NDA-I/2011)
Bronze is often used to make statues and medals whereas brass is used in making utensils, scientific apparatus and cartridges. Both brass and bronze are copper containing alloys, yet they differ in their chemical composition for additionally containing:

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,72,19,72,8,9,2

keywords: 

{'brass': [0, 0, 1, 1], 'bronze': [0, 0, 0, 1], 'alloys': [0, 0, 0, 4], 'copper': [1, 0, 1, 1], 'nickel': [1, 0, 0, 0], 'zinc': [1, 0, 0, 2], 'utensils': [0, 0, 0, 1], 'tin': [0, 0, 0, 1], 'chemical composition': [0, 0, 1, 2], 'medals': [0, 0, 1, 0]}

Option 1 correctly states that brass contains zinc and bronze contains tin in addition to copper. Both brass and bronze are alloys, which means they are made by combining different metals. Brass is made by combining copper with zinc, while bronze is made by combining copper with tin.

Zinc gives brass its distinctive yellow color and also strengthens the alloy, making it suitable for making utensils, scientific apparatus, and cartridges. On the other hand, tin gives bronze a reddish-brown color and increases its hardness and durability, making it a popular material for statues and medals.

Option 2 is incorrect because brass does not contain chromium and bronze does not contain nickel. Chromium and nickel are not typically added to these alloys.

Option 3 is incorrect because brass does not contain nickel and bronze does not contain tin. Nickel is not commonly found in brass, and tin is not found in bronze.

Option 4 is incorrect because brass does not contain iron and bronze does not contain nickel. Iron and nickel are not typically included in the composition of these alloys.

In conclusion, option 1 accurately describes the additional metals present in brass (zinc) and bronze (tin).