Question Discussion & Solution

• The Juvenile Justice Act of 2015 is an amendment to the Juvenile Justice Act, 2002.
• It provides for the trial of children in the age group 16-18 years as adults under circumstances involving heinous crimes.
• The act has defined a child as someone who is below the age of 18.
• Minimum Punishment - Seven years.
• However, the act doesn't make it mandatory to try all children in the age group of 16-18 years as adults.

Here, all except Nohkalikai are names of different diseases while ‘Nohkalikai’ is a waterfall in India.

The correct answer is ​0 to 14.

Important Points

• The pH scale is the scale used to express the acidity or alkalinity of a substance based on the concentration of hydrogen ions in its solution.
  • pH scale was discovered by Soren Sorensen.
  • The range of pH scale 0 to 14.
    • If pH < 7 then solution is acidic.
    • If pH > 7 then solution is basic.
    • If pH = 7 then solution is neutral.

Additional Information

• pH means the potential of Hydrogen.
• The strength of acids and bases depends on the number of H⁺ ions and OH^- ions produced, respectively.
• The human body works within the pH range of 7.0 to 7.8.
• When the pH of rainwater is less than 5.6, it is called acid rain.
• Tooth decay starts when the pH of the mouth is lower than 5.5.

The pattern is:

15

15 × 3 - 3 = 42;

42 × 4 - 4 = 164

164 × 5 - 5 = 815;

815 × 6 - 6 = 4884