During war, arsenic containing poisonous gas called Lewisite is sometimes used. The soldiers may get affected due to poisoning by arsenic or it may affect the people living in the nearby areas. Similarly, we use a number of articles containing lead. If somehow it enters into our body, e.g., along with water if lead pipes are used for transport of water, there may be lead poisoning. The person inflicted with arsenic or lead poisoning has to be given an antidote.
Now, answer the following questions :
(i) What values are expressed in the above paragraph?
(ii) Which antidote is given for arsenic poisoning and which one for lead poisoning?

Explanation

(i) (a) Lead pipes should not be used for transport of drinking water.
(b) People living in the areas close to war field should take the antidote if inflicted.
(ii) British Anti-Lewisite (BAL) for arsenic poisoning and EDTA for lead poisoning.