The chemical name of 'laughing gas is
1). Nitric oxide
2). Nitrogen dioxide
3). Nitrogen pentoxide
4). Nitrous oxide
Answer This Question with Explaination and Earn! Click Here to Know More!
1. The substance most commonly used as a food preservative is
2. Addition of suitable impurities into semiconductor, is called
3. Question 10.13:Give the uses of freon 12, DDT, carbon tetrachloride and iodoform.
4. Ultraviolet radiation striking this earth is due to the depletion of
6. Bauxite is an alloy of which of the following metals
7. What is the common name of $CaOCl_{2}$?
8. Zinc sulphide is commonly used as