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प्रश्न
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
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उत्तर
(i) Duralumin – (C) Aircraft body
(ii) Solder – (A) Electrical fuse
(iii) Brass – (D) Decorative articles
(iv) Stainless steel – (B) surgical instruments
संबंधित प्रश्न
State one use of the following metal:
Silver
Mention two uses of the following metals and non-metals
Aluminium
Write name.
The device used for grinding an ore.
Write scientific reason.
Pine oil is used in froth flotation.
State the position of the following in the periodic table:
Halogens
Give a reason why a green deposit is seen on the surface of an article of copper
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
An amorphous substance which turns from pale green to black on strong heating evolving a colourless, acidic gas as the only gaseous product.
Can you store pickle in an aluminium utensil? Give reason.
The ability of metals to be drawn into thin wire is known as
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
