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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.
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उत्तर
Gallium is a liquid metal.
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संबंधित प्रश्न
Fill in the following blanks with suitable words:
A metal having low melting point is ..................... but a non-metal having very high melting point is ..............
Give the composition of an alloy called solder. State its one property and one use.
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
Mention two uses of the following metals and non-metals
Iodine
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Write name.
The device used for grinding an ore.
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.
What is it made from? Why?
Pots and pans
With reference to the following metals state their use in daily life metal:
copper
With reference to the following metal state its use in daily life:
Magnesium
Give reasons for the following.
- Aluminum foils are used to wrap food items.
- Immersion rods for heating liquids are made up of metallic substances.
- Sodium and potassium are stored in kerosene.
- Mercury is used in thermometers.
Which of the following two combinations are correct?
| Metal | Gas Evolved | |
| (i) | Copper | Yes |
| (ii) | Iron | Yes |
| (iii) | Magnesium | No |
| (iv) | Zinc | Yes |
Which one of the following metals do not react with cold as well as hot water?
Why are bells made of metals?
Which of the following metals can displace the other two metals from their salt solutions?
The metal can be cut with a knife ______.
Compare the conductivity of metals and non–metals.
