हिंदी

Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.

सारिणी
Advertisements

उत्तर

Reactive metals Moderately reactive metals Less reactive metals
Ca Fe Cu
Na Zn  
Li Mg  
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Metallurgy - Exercises [पृष्ठ १०९]

APPEARS IN

बालभारती Science and Technology 1 [English] Standard 10 Maharashtra State Board
अध्याय 8 Metallurgy
Exercises | Q 11 | पृष्ठ १०९

संबंधित प्रश्न

What do you observe when a few pieces of iron are dropped in a blue solution of copper sulphate?


What do you observe when Magnesium ribbon is burnt in oxygen.


Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminium.


Write chemical equation for the event.

Electrolysis of alumina is done.


With reference to Water explain with suitable examples of how the reactivity of the metals could be differentiated.


Give a balanced equation for the reversible catalytic reaction involving nitrogen as one of the reactants.


Select the correct answer for the statement given below:

The catalyst used in the catalytic reaction involving the reactants nitrogen and hydrogen.


Select the correct answer for the statement given below:

A neutral oxide which does not react with an acid or a base to give salt and water.


Complete the statement by filling in the blank with the correct word:

The metal which reacts with steam and the reaction is reversible is ________.


In preparation of Aqua regia hydrochloric acid and _______ acid are mixed.


Classify the following metals based on their reactivity.
Cu, Zn, Ca, Mg, Fe, Na, Li, Hg

More reactive Moderately reactive Less reactive
     
     

Explain the following reaction with the balanced equation.

Sodium burns in air


Explain the following reaction with the balanced equation.

Magnesium reacts with dil HCl


Observe the following diagram and identify the type of reaction and write observation.


Compound X and aluminium are used to join railway tracks.

  1. Identify the compound X
  2. Name the reaction
  3. Write down its reaction.

A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.


A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black colour product. Identify M and black coloured product and also explain the reaction of M with oxygen.


Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores.


An element A burns with golden flame in air. It reacts with another element B, atomic number 17 to give a product C. An aqueous solution of product C on electrolysis gives a compound D and liberates hydrogen. Identify A, B, C and D. Also write down the equations for the reactions involved.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×