Question 1 : Which of the following is an oxidizing agent?
Carbon monoxide
lead dioxide
gemenium oxide
tin dioxide
Question 2 : The following are crystaline forms of silica except
quartz
cristobalite
tridymite
crystaamite
Question 3 : Which of the following is used in matches and fireworks?
nitrogen
arsenic
bismuth
red phosphorous
Question 4 : Which of the group V elements form the pp- pp multiple bonds?
Bi
N
Ar
Sb
Question 5 : Which of the following is used to decolourize bottle glasses
Sodium arsenate
arsenic acid
arsenic hydride
arsenic oxide
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Expert's answer
2017-04-08T05:32:42-0400
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