मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Explain the characteristics of ionic compounds.

Advertisements
Advertisements

प्रश्न

Explain the characteristics of ionic compounds.

What are the characteristics of ionic compounds?

स्पष्ट करा
सविस्तर उत्तर
Advertisements

उत्तर

  1. Physical nature: Ionic compounds are solids and are hard. They are generally brittle and break into pieces when pressure is applied.
  2. Melting and boiling points: Ionic compounds have high melting and boiling points.
  3. Solubility: Ionic compounds are generally soluble in water. However, they are insoluble in kerosene and petrol.
  4. Electrical conductivity: Ionic compounds conduct electricity in a molten state or in their aqueous solution. Conduction of electricity in these states is due to the movement of charged particles (i.e., ions) towards the oppositely charged electrodes. However, in solid-state ionic compounds, they do not conduct electricity, as movement of the ions is not possible due to their rigid structure.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Metallugy - Solve the following Questions [पृष्ठ ३०]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 10 ICSE
पाठ 2 Chemical Bonding
Intext Question | Q 9. | पृष्ठ २९

संबंधित प्रश्‍न

Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.


In the extraction of aluminium: Why is it necessary to replace anodes time to time?


Explain giving one example, how highly reactive metals (which are high up in the reactivity series) are extracted.


Define the term mineral.


Explain giving equation, what happens when:

ZnCO3 is heated in the absence of air?


What iron compound is present in haematite ore? Also write its chemical formula.


What is the difference between a mineral and an ore?


Name one ore of sodium. Name the sodium compound present in this ore and write its chemical formula.


State three objectives achieved during the roasting of ores.


Some metallic oxides can be reduced by hydrogen, carbon and carbon monoxide and some cannot. Explain.


Define the following term.

Gangue


 Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process : 
What is the function of cryolite used along with alumina as the electrolyte? 


Name the following:
The process of heating a substance very strongly in such a way that it does not combine with oxygen.


Arrange the metals of copper, iron, magnesium, sodium and zinc in the decreasing order of reactivity.


State three objectives achieved during the roasting of ores.


Write the name.

The molecular formula of main ore of aluminium -


Right or wrong sentence?

In the electrolytic dissipation method of alumina, the lining of graphite acts as an anode.


Identify who I am!

Ore of Aluminum- ______


Observe the figure and answer the following.

  1. Write the name of the method.
  2. What is used as anode and cathode in this method?
  3. Write the molecular formula and use of cryolite.
  4. Write anode reaction.
  5. Write cathode reaction.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×