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प्रश्न
Name an alloy of lead and tin.
उत्तर
Solder
Explanation:
Solder is an alloy of lead and tin. It contains 50 percent lead and 50 percent tin.
संबंधित प्रश्न
State one use of Silver.
Which property of 'solder' alloy makes it suitable for welding electrical wires?
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.
Mention two uses of the following metals and non-metals
Iodine
Aluminium is not used to make :
Write ‘True’ or ‘False’ in front of following statement.
Magnesium is used in making light weight alloys of aluminium.
State two important uses of following metal
Uses of tin
State two important uses of following metal
Uses of lead
State two important uses of following metal
Uses of magnesium
State the position of the following in the periodic table:
Iron and zinc
State the position of the following in the periodic table:
Aluminium
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Oxygen
Write name.
The reagent that dissolves noble metals.
Give reasons for the following:
Most metals conduct electricity well.
What is it made from? Why?
Ornaments
Soft metal : Na : : hard metal : _______
Match the columns.
| Group A | Group B |
| 1) Copper and Zinc | a) Brass |
| 2) Copper and Tin | b) Bronze |
| c) Stainless steel |
Which of the following metals can displace the other two metals from their salt solutions?
| Zinc | iron | copper |
