मराठी

In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?

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प्रश्न

In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?

लघु उत्तर
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उत्तर

The metal B will be nearer to the top of the activity series of metals because this metal is so reactive that it reacts with most elements to form its compounds. But metal A is less reactive because it exists in a free state and does not react with other elements.

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पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १७०]

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लखमीर सिंह Chemistry [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 97. | पृष्ठ १७०

संबंधित प्रश्‍न

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


The reaction of an iron nail with copper sulphate solution is ........... reaction.

(a) Combination

(b) Displacement

(c) Double displacement

(d) Decomposition


From amongst the metals sodium, calcium, aluminium, copper and magnesium, name the metal:

  1. which reacts with water only on boiling, and
  2. another which does not react even with steam.

Name two metals which form amphoteric oxides.


Write an equation for the reaction of:

Sodium with oxygen


Complete and balance the following equation:

\[\ce{Cu(NO3)2_{(aq)} + Zn_{(s)} ->}\]


What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.


How do metals react with hydrogen? Explain with an example.


Can we keep sodium immersed under water? Why?


Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?


What is the action of water on magnesium? Write equations of the chemical reactions involved.


Write the equation for the reaction of:

Aluminium with dilute hydrochloric acid.

Name the products formed in the given case. Also indicate the physical states of all the substances involved.


Which non-metal has been placed in the reactivity series of metals?


An acidic oxide is produced by the element ______.


The elements whose oxides can turn litmus solution blue are ______.


Name a metal which does not react with cold as well as hot water but reacts with steam.


What is the cause of chemical bonding (or chemical combination) of atoms of elements?


Which one among the following is an acidic oxide?


An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.


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