KERALA PSC / CHEMISTRY / BASES / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CHEMISTRY / BASES / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CHEMISTRY / BASES / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      Oxides and hydroxides of metals (or metal like radicals) are called bases.

·      Sodium hydroxide: Manufacture of soap

·      Calcium hydroxide:

1.    Manufacture of bleaching powder, mortar

2.    Softening of hard water

3.    Neutralizing acid in the soil and in water supplies

·      Potassium hydroxide: Alkaline batteries

·      Magnesium hydroxide: As an antacid to neutralize acidity caused by hydrochloric acid in the stomach.

·      Aluminium hydroxide: Foaming agent in fire extinguishers

·      Ammonium Hydroxide: Used to remove grease stains from clothes.

KERALA PSC / CHEMISTRY / BASES / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY