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Identify who I am! Metal in Liquid state- _______ - Science and Technology 1

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प्रश्न

Identify who I am!

Metal in Liquid state- _______

एक शब्द/वाक्यांश उत्तर

उत्तर

Metal in Liquid state- Mercury

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अध्याय 8: Metallugy - Identify who I am!

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संबंधित प्रश्न

Give an example of a metal which is the best conductor of heat.


Name two metals which are used for making domestic utensils and factory equipment.


 Choose the acidic oxides, basic oxides and neutral oxides from the following:
Na2O; CO2; CO; SO2; MgO; N2O; H2O.


State one use of Hydrogen.


Name the metal which is the best conductor of heat and electricity.


Name a non-metal which conducts electricity.


 Name a metal that is brittle  


Fill in the blank.

A non-metal used to purify water is ______.


Statements given below are incorrect. Write the correct statements : 

Soda water is prepared by dissolving washing soda in water.  


State any five physical properties of a metal.
Physical properties of a metal : 


Distinguish between metals and non metals on the basis of:
(i) ion formation, (ii) discharge of ions, (iii) nature of oxide formed, (iv) oxidizing and reducing property, (v) reaction with acids.


Explain how the activity series accounts for  the following:

occurrence of metals


Explain the term Minerals.


Identify the odd term.


Name the following:
or

With reference to the physical properties of metals and non-metals, state the following exception.

A metal which is liquid at room temperature.


From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:

  1. Ductile
  2. Conduct electricity
  3. Brittle
  4. Acidic Oxides
  5. Basic Oxides
  6. Discharged at anode
  7. Discharged at cathode
  8. Ionic chlorides
  9. Covalent chlorides
  10. Reaction with dilute sulphuric acid yields hydrogen
  11. 1, 2 or 3 valence electrons
  12. 5, 6, 7 valence electrons

(Write the five letters corresponding to the correct characteristics).


Which metal occurs as a halide also gives the name of their respective ore.


A metallic oxide which cannot be reduced by normal reducing agents:


Name six common non-metals and write their symbols.


Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?


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