SSC General Science & Technology Sample Paper NCERT Sample Paper-1

  • question_answer
    Components of gun powder are:
    (1) Charcoal      
    (2) Potassium nitrate
    (3) Magnesium   
    (4) Sulphur

    A)  1, 4                 

    B)  2, 3, & 4

    C)  2 & 3  

    D)  1, 2, 4

    Correct Answer: D

    Solution :

     Gun powder is a granular mixture of a nitrate, typically potassium nitrate \[\left( KN{{O}_{3}} \right),\] which supplies oxygen for the reaction, charcoal, which provides carbon and other fuel for the reaction, simplified as carbon [c], and sulfur (S), which, while also serving as a fuel, lowers the temperature required to ignite the mixture, thereby increasing the rate of combustion.

You need to login to perform this action.
You will be redirected in 3 sec spinner