Q: 73 (NDA-II/2012)
question_subject:
Science
question_exam:
NDA-II
stats:
0,19,23,19,7,8,8
keywords:
{'correct answser': [0, 0, 0, 6], 'potassium sulphate': [0, 0, 0, 1], 'cellulose nitrate': [0, 0, 0, 1], 'soft soap': [0, 0, 0, 1], 'calcium oxide': [0, 0, 0, 1], 'compound': [0, 0, 1, 1], 'potassium salt': [0, 0, 0, 3], 'fertilizer': [2, 0, 0, 3], 'glass': [0, 0, 1, 4], 'gun powder': [0, 0, 1, 1]}
The correct answer is option 1: 2 2 1 3 4.
Let`s break down each compound and its corresponding use:
A. Cellulose nitrate - Cellulose nitrate is used in the creation of gun powder, so it matches with use 2 (Gun powder).
B. Potassium sulfate - Potassium sulfate is commonly used as a fertilizer, so it matches with use 3 (Fertilizer).
C. Potassium salt of fatty acids - This compound is used to make soft soap, so it matches with use 1 (Soft soap).
D. Calcium oxide - Calcium oxide is used in the production of glass, so it matches with use 4 (Glass).
By matching these compounds with their correct uses, we find that the correct code is 2 2 1 3 4, which corresponds to option 1.