Q: Which of the following statements with regard to heating of lead nitrate powder over a flame are correct? 1. Brown fumes of NO are released. 2. Colourless O₂ gas is released. 3. It is an example of oxidation reaction. 4. It is an example of thermal decomposition used for the production of NO₂ gas. Select the correct answer using the code given below.
(a)1 and 2
(b)2, 3 and 4
(c)1, 3 and 4
(d)2 and 4 only
Correct Answer: (d)
The correct answer is (a) '1 and 2'. Among the 4 statements given, this option correctly identifies which statements are accurate regarding Computer & Information Technology (Science & Technology).