321363
The transition element ( \({\mathrm{\approx 5 \%}}\) ) present with lanthanoid metal in Misch metal is :
1 Mg
2 Fe
3 Zn
4 Co
Explanation:
\({\mathrm{95 \%}}\) lanthanoid metal and \({\mathrm{\approx 5 \%}}\) iron are present in Misch metal.
KCET - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321364
The common metal present in german silver, bell metal and brass is
1 \(\mathrm{\mathrm{Fe}}\)
2 \(\mathrm{\mathrm{Cu}}\)
3 \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Sn}}\)
Explanation:
German silver \(\mathrm{-\mathrm{Cu}+\mathrm{Ni}+\mathrm{Zn}}\) Bell metal \(\mathrm{-\mathrm{Cu}+\mathrm{Sn}}\) Brass \(\mathrm{-\mathrm{Cu}+\mathrm{Zn}}\) Copper present in all alloys
CHXII08:THE D- & F-BLOCK ELEMENTS
321365
Assertion : Transition metals form substitutional alloys. Reason : Alloys are made to develop some useful properties which are absent in the constituent elements.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Transition metals, due to their closely matched sizes, readily form substitutional alloys by seamlessly substituting one another within the crystal lattice structure. Alloys have properties that are not present in the parent metals. So option (2) is correct.
CHXII08:THE D- & F-BLOCK ELEMENTS
321366
Muntz metal is an alloy of
1 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Sn}}\)
2 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\)
3 \(\mathrm{\mathrm{Ag}}\) and \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Mn}}\)
Explanation:
Muntz metal is an alloy of \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\).
321363
The transition element ( \({\mathrm{\approx 5 \%}}\) ) present with lanthanoid metal in Misch metal is :
1 Mg
2 Fe
3 Zn
4 Co
Explanation:
\({\mathrm{95 \%}}\) lanthanoid metal and \({\mathrm{\approx 5 \%}}\) iron are present in Misch metal.
KCET - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321364
The common metal present in german silver, bell metal and brass is
1 \(\mathrm{\mathrm{Fe}}\)
2 \(\mathrm{\mathrm{Cu}}\)
3 \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Sn}}\)
Explanation:
German silver \(\mathrm{-\mathrm{Cu}+\mathrm{Ni}+\mathrm{Zn}}\) Bell metal \(\mathrm{-\mathrm{Cu}+\mathrm{Sn}}\) Brass \(\mathrm{-\mathrm{Cu}+\mathrm{Zn}}\) Copper present in all alloys
CHXII08:THE D- & F-BLOCK ELEMENTS
321365
Assertion : Transition metals form substitutional alloys. Reason : Alloys are made to develop some useful properties which are absent in the constituent elements.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Transition metals, due to their closely matched sizes, readily form substitutional alloys by seamlessly substituting one another within the crystal lattice structure. Alloys have properties that are not present in the parent metals. So option (2) is correct.
CHXII08:THE D- & F-BLOCK ELEMENTS
321366
Muntz metal is an alloy of
1 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Sn}}\)
2 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\)
3 \(\mathrm{\mathrm{Ag}}\) and \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Mn}}\)
Explanation:
Muntz metal is an alloy of \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\).
321363
The transition element ( \({\mathrm{\approx 5 \%}}\) ) present with lanthanoid metal in Misch metal is :
1 Mg
2 Fe
3 Zn
4 Co
Explanation:
\({\mathrm{95 \%}}\) lanthanoid metal and \({\mathrm{\approx 5 \%}}\) iron are present in Misch metal.
KCET - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321364
The common metal present in german silver, bell metal and brass is
1 \(\mathrm{\mathrm{Fe}}\)
2 \(\mathrm{\mathrm{Cu}}\)
3 \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Sn}}\)
Explanation:
German silver \(\mathrm{-\mathrm{Cu}+\mathrm{Ni}+\mathrm{Zn}}\) Bell metal \(\mathrm{-\mathrm{Cu}+\mathrm{Sn}}\) Brass \(\mathrm{-\mathrm{Cu}+\mathrm{Zn}}\) Copper present in all alloys
CHXII08:THE D- & F-BLOCK ELEMENTS
321365
Assertion : Transition metals form substitutional alloys. Reason : Alloys are made to develop some useful properties which are absent in the constituent elements.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Transition metals, due to their closely matched sizes, readily form substitutional alloys by seamlessly substituting one another within the crystal lattice structure. Alloys have properties that are not present in the parent metals. So option (2) is correct.
CHXII08:THE D- & F-BLOCK ELEMENTS
321366
Muntz metal is an alloy of
1 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Sn}}\)
2 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\)
3 \(\mathrm{\mathrm{Ag}}\) and \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Mn}}\)
Explanation:
Muntz metal is an alloy of \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\).
321363
The transition element ( \({\mathrm{\approx 5 \%}}\) ) present with lanthanoid metal in Misch metal is :
1 Mg
2 Fe
3 Zn
4 Co
Explanation:
\({\mathrm{95 \%}}\) lanthanoid metal and \({\mathrm{\approx 5 \%}}\) iron are present in Misch metal.
KCET - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321364
The common metal present in german silver, bell metal and brass is
1 \(\mathrm{\mathrm{Fe}}\)
2 \(\mathrm{\mathrm{Cu}}\)
3 \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Sn}}\)
Explanation:
German silver \(\mathrm{-\mathrm{Cu}+\mathrm{Ni}+\mathrm{Zn}}\) Bell metal \(\mathrm{-\mathrm{Cu}+\mathrm{Sn}}\) Brass \(\mathrm{-\mathrm{Cu}+\mathrm{Zn}}\) Copper present in all alloys
CHXII08:THE D- & F-BLOCK ELEMENTS
321365
Assertion : Transition metals form substitutional alloys. Reason : Alloys are made to develop some useful properties which are absent in the constituent elements.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
Transition metals, due to their closely matched sizes, readily form substitutional alloys by seamlessly substituting one another within the crystal lattice structure. Alloys have properties that are not present in the parent metals. So option (2) is correct.
CHXII08:THE D- & F-BLOCK ELEMENTS
321366
Muntz metal is an alloy of
1 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Sn}}\)
2 \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\)
3 \(\mathrm{\mathrm{Ag}}\) and \(\mathrm{\mathrm{Zn}}\)
4 \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Mn}}\)
Explanation:
Muntz metal is an alloy of \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\).
