Question

Answer the following question :-

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1). Properties of lonic Compounds:

2). Example of ph in our daily life

3). what is alkali?​

Answer 1

Answer:

Physical properties of ionic compounds

electrical conductivity. Ionic compounds conduct electricity when molten or dissolved in water because the ions can move and carry charge.

water solubility. Most ionic compounds are soluble in water and form aqueous solutions.

pH is a measure of hydrogen ion concentration, a measure of the acidity or alkalinity of a solution. ... Aqueous solutions at 25°C with a pH less than 7 are acidic, while those with a pH greater than 7 are basic or alkalin

a compound with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids; typically, a caustic or corrosive substance of this kind such as lime or soda.

Answer 2

☆ Properties of lonic Compounds :

• » lonic compounds are solids and are some what hard because of the strong force of attraction between the positive and negative ions.

• » These compounds are generally brittle and break into pieces when pressure is applied.

• » lonic compounds have high melting and boiling points.

• » Electrovalent compounds are generally soluble in water and insoluble in organic solvents such as kerosene, petrol, etc.

• » lonic compounds conduct electricity in the molten state.

✇ Alkalies :

• ➣ An alkali is a base that dissolves in water.

• ➣ Example :- NaOH, KOH, Ca(OH)2, NH4OH.

• ➣ All alkalies are bases but all bases are not alkalies.

✧ Example of ph in our daily life :

• ➮ Strength of an acid and base can be determined with the help of universal indicator and pH scale.

• ➮ pH scale gives the measure of hydrogen ion concentration in a solution.

• ➮ It measures from 0 (very acidic) to 14 (very alkaline). 7 indicates neutral pH.

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