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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
Give a reason for the following:
Alkali metals are good reducing agents.
The atomic number of an element Y is 16.
- What must an atom of Y do to achieve the nearest inert gas electron arrangement?
- Which inert gas is nearest to Y?
Name two alloys of iron. What elements are present in these alloys?
Which property of ‘solder’ alloy makes it suitable for welding electrical wires?
The electrical conductivity and melting point of an alloy is ______ than that of pure metals.
State two important uses of following metal:
Uses of aluminium
Give the general characteristics of:
Alkaline earth metals with reference to
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Write scientific reason.
Anodes need to be replaced from time to time during the electrolysis of alumina.
Give reasons for the following:
Most metals conduct electricity well.
With reference to the following metals state their use in daily life metal:
copper
With reference to the following metals state their use in daily life metal:
Lead
The minerals from which the metal can be separated economically are called _______.
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.
Which of the following metals can displace the other two metals from their salt solutions?
Silver and copper are very good conductors of electricity.
Metals have high melting points.
Compare the conductivity of metals and non–metals.
The metals which are found in both free state as well as combined state are ______.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
