Civil Services Kerala (കേരളം) PSC KAS Prelims Test Series 2025 Current Affairs Science and Technology
Which of the following compounds are commonly used in the manufacture of green crackers to reduce emissions?
1. Potassium Nitrate
2. Aluminium Powder
3. Barium Nitrate
4. Sulfur
5. Strontium Nitrate
Select the correct answer using the code given below:
1
1, 2, and 3 only
2
1, 3, and 4 only
3
1, 2, and 5 only
4
1, 2, 3, and 4