Question 16 : Which of these is not a component of lead-acid battery?
Question 17 : Flourine has all but one of these properties
it is the strongest oxidising agent in the whole group
The oxidation state of is -1
The size is larger than the other halogens
It can oxidise all the other halide ions to their respective elements
Question 18 : Fluorine reacts with alkalies to yield------------
Question 19 : Nitrogen is obtained commercially from
Question 20 : Which of these halogens does not form oxoacids ?
lead chloride The size is larger than the other halogens the oxide air Flourine