Question

Identify the correct statements from the following

• A. HCl is non-corrosive and has a density 0.5 times that of air
  
• B. HCl is highly corrosive and has a density 1.25 times that of air
  
• C. HCl has a sour taste and dissociation of HCl in water exhibits a cloudy nature
• D. HCl has a sour taste and doesn't dissociate in water

Answer 1

Answer: (B), (C)

The correct options are
B HCl is highly corrosive and has a density 1.25 times that of air

C HCl has a sour taste and dissociation of HCl in water exhibits a cloudy nature

HCl is a highly corrosive acid due to its strong acidic nature. It has a density which is 1.25 times that of air. Since HCl is an acid, it has a sour taste and it dissociates as $H^{+}$ and $C{l}^{-}$ ions when it comes in contact with water. During dissociation, evolution of heat occurs and the water droplets heats up to form a cloudy appearance.