Q. With reference to Green crackers, consider the following statements;
1.These crackers are composed salts of strontium, sodium, barium, calcium, and copper as well as white metals
2.The crackers developed by the Council of Scientific and Industrial Research.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: B
Notes:

Statement 1 is incorrect: Conventional crackers are composed of charcoal or thermite in combination with oxidizing agents such as nitrates or chlorates, sulfur agents, and colouring agents. These include salts of strontium, sodium, barium, calcium, and copper as well as white metals, which produce more particulate matter (PM).

But Green crackers are low-emission crackers, free of harmful chemicals such as sulphur, nitrates, arsenic, magnesium, sodium, lead, and barium, which reduce the emission of up to 30%.

Statement 2 is correct: The crackers developed by the Council of Scientific and Industrial Research (CSIR) falls under three categories (SWAS, STAR and SAFAL).

Source: Indian Express