PDF chapter test TRY NOW

Choose the best ones:
  
A)   
Statement 1: Water is composed of two oxygens and one hydrogen.
Statement 2: The chemical formula of water is \(HO_2\).
 
B)  
Statement 1: Clouds are white coloured structures.                     
Statement 2: At certain heights the air gets cooler due to which the water vapor present in it condenses to form clouds.