321371 I.
The most of durable metal plating on iron to protect against corrosion is zinc plating.
II. German silver is an alloy of copper, \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Ni}}\).
III. Bordeaux used as fungicide is a mixture of \(\mathrm{\mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2}}\).
IV. Turn bull's blue is a compound called ferrous ferricyanide.
The incorrect statements are (choose the appropriate option)

321372 One of the constituents of an amalgam is

321373 Which of the following alloys contain \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\) ?
I. Brass
II. Bronze
III. Type metal
IV. Gun metal
Choose the correct option

321374 Which one of the following does not contain zinc?

321375 Identify the alloy containing a non-metal as a constituent in it.

321371 I.
The most of durable metal plating on iron to protect against corrosion is zinc plating.
II. German silver is an alloy of copper, \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Ni}}\).
III. Bordeaux used as fungicide is a mixture of \(\mathrm{\mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2}}\).
IV. Turn bull's blue is a compound called ferrous ferricyanide.
The incorrect statements are (choose the appropriate option)

321372 One of the constituents of an amalgam is

321373 Which of the following alloys contain \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\) ?
I. Brass
II. Bronze
III. Type metal
IV. Gun metal
Choose the correct option

321374 Which one of the following does not contain zinc?

321375 Identify the alloy containing a non-metal as a constituent in it.

321371 I.
The most of durable metal plating on iron to protect against corrosion is zinc plating.
II. German silver is an alloy of copper, \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Ni}}\).
III. Bordeaux used as fungicide is a mixture of \(\mathrm{\mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2}}\).
IV. Turn bull's blue is a compound called ferrous ferricyanide.
The incorrect statements are (choose the appropriate option)

321372 One of the constituents of an amalgam is

321373 Which of the following alloys contain \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\) ?
I. Brass
II. Bronze
III. Type metal
IV. Gun metal
Choose the correct option

321374 Which one of the following does not contain zinc?

321375 Identify the alloy containing a non-metal as a constituent in it.

321371 I.
The most of durable metal plating on iron to protect against corrosion is zinc plating.
II. German silver is an alloy of copper, \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Ni}}\).
III. Bordeaux used as fungicide is a mixture of \(\mathrm{\mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2}}\).
IV. Turn bull's blue is a compound called ferrous ferricyanide.
The incorrect statements are (choose the appropriate option)

321372 One of the constituents of an amalgam is

321373 Which of the following alloys contain \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\) ?
I. Brass
II. Bronze
III. Type metal
IV. Gun metal
Choose the correct option

321374 Which one of the following does not contain zinc?

321375 Identify the alloy containing a non-metal as a constituent in it.

321371 I.
The most of durable metal plating on iron to protect against corrosion is zinc plating.
II. German silver is an alloy of copper, \(\mathrm{\mathrm{Zn}}\) and \(\mathrm{\mathrm{Ni}}\).
III. Bordeaux used as fungicide is a mixture of \(\mathrm{\mathrm{CuSO}_{4}+\mathrm{Ca}(\mathrm{OH})_{2}}\).
IV. Turn bull's blue is a compound called ferrous ferricyanide.
The incorrect statements are (choose the appropriate option)

321372 One of the constituents of an amalgam is

321373 Which of the following alloys contain \(\mathrm{\mathrm{Cu}}\) and \(\mathrm{\mathrm{Zn}}\) ?
I. Brass
II. Bronze
III. Type metal
IV. Gun metal
Choose the correct option

321374 Which one of the following does not contain zinc?

321375 Identify the alloy containing a non-metal as a constituent in it.