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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
.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen
_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Why is sodium kept immersed in kerosene oil?
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
How would you show that silver is chemically less reactive than copper?
Give reasons for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Complete and balance the following equation:
\[\ce{Fe_{(s)} + H2O_{(g)} ->[Red heat]}\]
Magnesium liberates ______ gas on reacting with hot boiling water.
With the help of examples, describe how metal oxides differ from non-metal oxides.
Can we keep sodium immersed under water? Why?
The elements whose oxides can turn litmus solution red are ______.
A metal less reactive and another metal more reactive than hydrogen are ______.
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
- What is the nature of the oxide E2O?
- State whether element E is a metal or a non-metal.
- Give one example of an element like E.
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.
What are noble gases?
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Answer the following question:
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is metal or a non - metal. Explain with a proper example.
