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प्रश्न
Find the odd one out:
पर्याय
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
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.
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
Name the metal which has been placed at the top of the reactivity series.
Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Fill in the following blank with suitable word:
Magnesium liberates ............... gas on reacting with hot boiling water.
Fill in the following blank with suitable word:
The white powder formed when magnesium ribbon burns in oxygen is of ....................
Fill in the following blank with suitable word:
Calcium is a ................. reactive metal than sodium.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
Write the equation for the reaction of Iron with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Name one metal which displaces silver from silver nitrate solution and one which does not.
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
(a) What is the nature of the oxide E2O?
(b) State whether element E is a metal or a non-metal.
(c) Give one example of an element like E.
If A, B, C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, which one of them is most likely to occur in a free state in nature?
Write the name and formula of a molecule made up of three atoms of oxygen.
Write the chemical equation for the following reaction:
Cinnabar is heated in the presence of air.
