Answer:
The presence of 1-2% ethanol as catalyst, suppresses the oxidation of chloroform with oxygen to give a poisonous gas called phosgene. ... Here glycerol acts as negative catalyst. Criteria or characteristics of catalysts. i. The mass and chemical composition of catalyst should remain unchanged at the end of the reaction.
Explanation:
 
        
             
        
        
        
Answer:
010
Explanation:
Group 10
Nickel (Ni), chemical element, ferromagnetic metal of Group 10 (VIIIb) of the periodic table, markedly resistant to oxidation and corrosion.
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Answer:
C. Yes, because they have a definite composition.
Explanation:
<h2><u><em>
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Answer:
Explanation:
F2 have the weakest attraction to each other because of higher electronegativity when they are brought close to each other they repel each other