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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
A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green
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From amongst the metals sodium, calcium, aluminium, copper and magnesium, name the metal:
- which reacts with water only on boiling, and
- another which does not react even with steam.
Name two metals which form amphoteric oxides.
A copper coin is kept immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?
Give reasons for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Calcium is a ______ reactive metal than sodium.
How do non-metals react with hydrogen? Explain with an example.
Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.
What special name is given to substances like aluminium oxide?
What is meant by the reactivity series of metals?
Which non-metal has been placed in the reactivity series of metals?
An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be ______.
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
An element is soft and can be cut with a knife. It is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be ______.
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
- What is the nature of oxide XO?
- What is the nature of oxide ХО2?
- Would you call element X a metal or a non-metal? Give reason for your choice.
- Can you give an example of element like X?
In a solution of lead acetate, a strip of metal M was dipped. After some time, lead from the solution was deposited on the metal strip. Which metal is more reactive, M or lead?
A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
