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प्रश्न
Find the odd one out:
विकल्प
Lithium (Li)
Sodium (Na)
Nitrogen (N)
Magnesium (Mg)
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उत्तर
Nitrogen (N)
Explanation:
Because Nitrogen (N) is a non-metal.
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संबंधित प्रश्न
Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium
Name the following:
Metals which forms an amphoteric oxide.
Write equations for the reactions of iron with steam.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.
In which test tube or test tubes will she observe colour change? On the basis of this experiment, state which one is the most reactive metal and why.
Which of the following elements would yield a basic oxide?
Na, S, C, K, H
Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.
How do non-metals react with hydrogen? Explain with an example.
What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?
Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.
The least reactive metal among the following is:
The metals which can produce amphoteric oxides are ______.
What are noble gases?
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
A cable manufacturing unit tested few elements on the basisof their physical properties.
| Properties | W | X | Y | Z |
| Malleable | Yes | No | No | Yes |
| Ductile | Yes | No | No | Yes |
| Electrical conductivity | Yes | Yes | Yes | No |
| Melting Point | High | Low | Low | High |
Which of the above elements were dicarded for usage by the company?
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
Why is acidified water considered to be a good conductor of electricity?
