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Brass contains...

Brass contains

A

gold and copper

B

copper and zinc

C

zinc and silver

D

copper and silver,

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Brass**: Brass is classified as an alloy, which is a mixture of two or more metals or a metal and another element. 2. **Components of Brass**: The primary components of brass are copper and zinc. 3. **Composition of Brass**: Typically, brass consists of approximately 70% copper and 30% zinc, although these percentages can vary depending on the specific type of brass. 4. **Identifying the Correct Option**: Given the options: - Option 1: Gold and Copper - Option 2: Copper and Zinc - Option 3: Zinc and Silver - Option 4: Copper and Silver The correct answer is **Option 2: Copper and Zinc**, as these are the main components of brass. **Final Answer**: Brass contains Copper and Zinc. ---
**Step-by-Step Solution:** 1. **Understanding Brass**: Brass is classified as an alloy, which is a mixture of two or more metals or a metal and another element. 2. **Components of Brass**: The primary components of brass are copper and zinc. 3. **Composition of Brass**: Typically, brass consists of approximately 70% copper and 30% zinc, although these percentages can vary depending on the specific type of brass. ...
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1.5 gof brass containing Cu and Zn reasts with 3.0 M HNO_3 solution. The following reaction take place: Cu+HNO_3toCu^(2+)+NO_2(g)+H_2O Zn+H^(o+)+NO_(3)^(ɵ)toNH_(4)^(ɵ)+Zn^(2+)+H_(2)O (a). Calculate the percentage composition of brass. (b). How many " mL of " 3.0 HNO_3 will be required for completely reacting with 1.0 g of brass?

1.5 g of brass containing Cu and Zn reacts with 3 M HNO_(3) solution, the following reactions take place. Cu + HNO_(3) to Cu^(2+) + NO_(2)(g) + H_(2)O Zn + H^(+) + NO_(3)^(-) to NH_(4)^(+) + Zn^(2+) + H_(2)O The liberated NO_(2) (g) was found to be 1.04 L at 25^(@) C and one atm . (i) Calculate the percentage composition of brass. (ii) How many ml of 3 M HNO_(3) will be required for completely reacting 1 g of brass ?

Knowledge Check

  • Quantity of 1.5g brass containing Cu,Zn reacts with 3M,HNO_(3) solution, the following reactions takes place Cu +HNO_(3) rarr Cu^(2+) +NO_(2) +H_(2)O Zn +H^(+) +NO_(3)^(-) rarr NH_(4)^(+) +ZN^(2+) +H_(2)O (un balanced) The liberated NO_(2)(g) is found to occupy 1.04 litre at 25^(@)C and 1 atm pressure. Now answer the following question The volume of 3M-HNO_(3) (in ml) required for complete reaction with brass is

    A
    `9.56`
    B
    `14.34`
    C
    `6.37`
    D
    `19.12`

  • 2 g of brass containing Cu and Zn only reacts with 3M HNO_(3) solution. Following are the reactions taking place Cu(s) + HNO_(3) (aq) to Cu^(2+) (aq) +NO_(2)(g) + H_(2)O(I) Zn(s) + H^(+)(aq) + NO_(3)^(-)(aq) to NH_(4)^(+) + Zn^(2+)(aq) + H_(2)O(l) The liberated NO_(2)(g) was found to be 1.04 L at 25^(@) C and 1 atm [Cu=63.5 , Zn=65.4] The percentage by mass of Cu in brass was

    A
    `67%`
    B
    `70%`
    C
    `80%`
    D
    `90%`

  • Quantity of 1.5g brass containing Cu,Zn reacts with 3M,HNO_(3) solution, the following reactions takes place Cu +HNO_(3) rarr Cu^(2+) +NO_(2) +H_(2)O Zn +H^(+) +NO_(3)^(-) rarr NH_(4)^(+) +ZN^(2+) +H_(2)O (un balanced) The liberated NO_(2)(g) is found to occupy 1.04 litre at 25^(@)C and 1 atm pressure. Now answer the following question % of copper in the alloy is

    A
    80
    B
    90
    C
    85
    D
    10

    • Similar Questions

    Explore conceptually related problems

    2 g of brass containing Cu and Zn only reacts with 3M HNO_(3) solution. Following are the reactions taking place Cu(s) + HNO_(3) (aq) to Cu^(2+) (aq) +NO_(2)(g) + H_(2)O(I) Zn(s) + H^(+)(aq) + NO_(3)^(-)(aq) to NH_(4)^(+) + Zn^(2+)(aq) + H_(2)O(l) The liberated NO_(2)(g) was found to be 1.04 L at 25^(@) C and 1 atm [Cu=63.5 , Zn=65.4] The volume of HNO_(3) consumed during the reaction with brass is

    Brass is

    Quantity of 1.5g brass containing Cu,Zn reacts with 3M,HNO_(3) solution, the following reactions takes place Cu +HNO_(3) rarr Cu^(2+) +NO_(2) +H_(2)O Zn +H^(+) +NO_(3)^(-) rarr NH_(4)^(+) +ZN^(2+) +H_(2)O (un balanced) The liberated NO_(2)(g) is found to occupy 1.04 litre at 25^(@)C and 1 atm pressure. Now answer the following question Weight of NH_(4)NO_(3) formed in the reaction is

    2 g of brass containing Cu and Zn only reacts with 3M HNO_(3) solution. Following are the reactions taking place Cu(s) + HNO_(3) (aq) to Cu^(2+) (aq) +NO_(2)(g) + H_(2)O(I) Zn(s) + H^(+)(aq) + NO_(3)^(-)(aq) to NH_(4)^(+) + Zn^(2+)(aq) + H_(2)O(l) The liberated NO_(2)(g) was found to be 1.04 L at 25^(@) C and 1 atm [Cu=63.5 , Zn=65.4] How many grams of NH_(4)NO_(3) will be obtained in the above reaction ?

    Assertion (A): Calmel is a chemical compound whereas brass is a mixture. Reason (R ): Calomel always contains 5.6 times as much mercury as chlorine by weight. Brass can be made with widely different ratios of copper and zine.

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