CO2 can be absorbed by (A) Hot cupric oxide (B) Heated charcoal (C) Cold Ca(OH)2 (D) Alumina

CO2 can be absorbed by
(A) Hot cupric oxide
(B) Heated charcoal
(C) Cold Ca(OH)2
(D) Alumina
by

1 Answer

Answer :

(B) Heated charcoal
by

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What are the differences between cupric sulfate and copper?

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The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%

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How much heat is absorbed by 60.00 grams of copper when it is heated from 293 Kelvin to 353 Kelvin?

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0.257g of organic substance was heated with conc. sulphuric acid and then distilled with excess of strong alkali .the ammonia gas evolved was absorbed in 50ml of .1M HCl which required 23.2ml of c for neutralization at the end of the process. Determine the % of nitrogen in the compound ?

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Last Answer : A. Vol of 0 .1M HCl taken = 50ml Vol of .1MNaOH used for neutralization of unused acid=23.2ml Now, 23.2 ml of .1MNaOH =23.2ml of .1MHCl Vol of .1MHCl unused=23.2ml Vol of .1MHCl required ... NH3 solution contain nitrogen = 14*26.8/10*1000 Percentage of Nitrogen=14*26.8*100/10*1000*.257 =14.6%

Which of the following is a green house gas other than CO2? (A) Methane (B) Nitrous oxide (C) Chlorofluoro carbons (CFC) (D) All (A), (B) and (C)

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