A pair of compounds that can be used to generate a gas which has physiological effect on human beings is
sodium trioxonitrate (V) and calcium chloride
sodium dioxonitrate (III) and ammonium chloride
sodium trioxonitrate (V) and ammonium chloride
sodium dioxonitrate (III) and potassium chloride
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Why did they pick A, the answer is supposed to be C
NaNO₃ + NH₄Cl --> NH₄NO₃ + NaCl
Ammonium trioxonitrate(v) decomposes to produce N₂O which has a physiological effect on humans
NH₄NO₃ --> N₂O + 2H₂O
It means generatin a gas dat hve a physiology effect on human,nd dat gas is difinitely laughing gas(N20)nitrogen(1)oxide,admin u re wrng,optn C is d ansa
NH4CL NaNO3=NH4NO3 NACL,
U den nw heat NH4NO3 it wil decompose on heatin to gve
NH4NO3=ON HEATIN WIL GVE=N20 2H2O
To be frank,I don't understand this question.wat does it mean by generate physiological human beings.please someone help me out here
In simple terms, what is expected of you is to find out the combination of two compounds,even when further placed into reaction that eventually leads to the release of a gas that causes physiological reaction.Therefore, if you reacts the compounds given to each option you'll find out that the only one which causes physiological reaction in human is option (C) which when goes into reaction ,it produces NO2 (called laughing gas i.e it causes human to to laugh when it's inhaled).
UK US phys‧i‧ol‧o‧gy
/ˌfɪziˈɒlədʒi $ -ˈɑː-/noun [U]
1) the science that studies the way in which the bodies of living things work
a book on biochemistry and physiology
2) the way the body of a person or an animal works → anatomy
the physiology of the brain
— physiological adjective
Longman Dictionary of Contemporary English, Fifth Edition (LDOCE5) 
Pearson Education Limited 2009
