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प्रश्न
Fill in the blank
_______ is a soft metal.
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उत्तर
Pure gold is a soft metal.
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संबंधित प्रश्न
Write the name and formula of a metal hydride.
Mention two uses of the following metals and non-metals
Gold
Aluminium is not used to make :
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
State two important uses of following metal:
Uses of silver
State two important uses of following metal
Uses of tin
State two important uses of following metal
Uses of lead
State the position of the following in the periodic table:
Alkali metals
State the position of the following in the periodic table:
Aluminium
Write scientific reason.
Pine oil is used in froth flotation.
The minerals from which the metal can be separated economically are called _______.
Aluminium: _______: gold : : electric insulator
Higher Order Thinking Skills.
Aakash noticed that the metal latch on gate was difficult to open during hot sunny days. However, it was not difficult to open the same latch at night. Aakash observed that the latch and the gate are exposed to the sun during day time.
- Formulate a hypothesis based on the information provided.
- Briefly state how you would test the hypothesis.
What is ductility?
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 |
The metal can be cut with a knife ______.
Why do metals appear shiny?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
