Question : Which of the following acts as the best adsorbent?

Option 1: Charcoal

Option 2: Activated charcoal

Option 3: Activated coconut charcoal

Option 4: Carbon black

Question : Process of gaining electrons is known as -----------------.

Option 1: oxidation

Option 2: reduction

Option 3: radiation

Option 4: both oxidation and reduction

Question : The manufacturing of iron from iron ore involves the process of

Option 1: oxidation

Option 2: reduction

Option 3: electrolysis

Option 4: fractional distillation

Question : Most commonly used bleaching  agent is

Option 1: Sodium chloride

Option 2: Alcohol

Option 3: Carbon dioxide

Option 4: Chlorine

Question : ______ gas is used for the manufacturing of bleaching powder.

Option 1: Nitrogen

Option 2: Sulphur

Option 3: Oxygen

Option 4: Chlorine