A. But-1-yne B. 2-methyl But-1-ene C. 3-methyl prop-1-yne D. But-2-ene Correct Answer: Option D - But-2-ene Explanation Isomers of Butene:…
GAS CO2 N2 O2 % BY VOLUME 4 72 24 A. CO2 and O2 B. N2 and CO2 C. CO2,…
A. in the textile industry B. in the hydrogenation of oils C. as domestic and industrial fuels D. as fine…
A. 4 B. 3 C. 2 D. 1 Correct Answer: Option C - 2 Explanation There are 2 bond pairs…
A. valves B. open-hearths C. arcs D. tuyeres Correct Answer: Option D - tuyeres Explanation Pre-heated air at about 600ºC…
A. magnetite B. haematite C. carbon(ii)oxide D. calcium trioxosilicate(iv) Correct Answer: Option B - haematite Explanation Cast iron + haematite…
A. milk B. kerosene C. soil D. smoke Correct Answer: Option D - smoke Explanation Solid in gas mixture: Smoke,…
A. 40J/K B. 400J/K C. 4J/K D. 0.4J/K Correct Answer: Option B = 400J/K
A. HC≡CCH2CH3 B. CH2≡CH2CH3 C. CH3C≡CCH3 D. CH3CH≡CHCH3 Correct Answer: Option D - CH3CH≡CHCH3 Explanation An alkene is produced when…
A. fog B. carbon(ii)oxide C. smog D. sulphur(iv)oxide Correct Answer: Option B - carbon(ii)oxide Explanation The most common source of…