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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
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Why are alkali metals kept in kerosene oil?
The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
Complete the following flowchart.
An element which is always lustrous, malleable and ductile is ______.
Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)
All gases are ______.
Silver and copper are very good conductors of electricity.
