Tear gas is
1). Chloroprene
2). Carbonyl chloride
3). Nitrous oxide
4). Bleaching powder
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1. Which of the following acids serves as an electrolyte in a lead storage battery?
2. The term 'brown air' is used for
3. In which of the following states maximum iron ore is found ?
5. Which one of the following is an example of a gel ?
6. Sulphur dioxide present in the industrial chimney exhaust causes
7. Ilmenite is an ore/mineral of _________.
8. German silver an alloy does not contain the metal
9. This group of alumino-silicate minerals is widely used in making electrical insulators
10. Question 16.4:Why should not medicines be taken without consulting doctors?