Which of the following is a product of incomplete combustion of hydrocarbon?
A. CO₂
B. H₂O
C. CO
D. NaOH
Answer: Option C
Solution (By JKSSB Mock Tests)
Incomplete combustion due to insufficient oxygen produces carbon monoxide (CO) and/or soot (C). Complete combustion gives CO₂ and H₂O. CO is poisonous, binds to hemoglobin.
Explanation:
A homogeneous catalyst is in the same phase as the reactants. In the esterification of carboxylic acids with alcohols, liquid sulfuric acid (H2SO4) catalyzes the reaction between liquid reactants. Iron, platinum, and nickel are solid catalysts used for gaseous or liquid reactants, making them heterogeneous catalysts.
Explanation:
The ion-exchange process (using cation and anion exchange resins) removes all dissolved cations and anions from water, producing completely demineralized (deionized) water. Distillation removes most impurities but may still contain trace dissolved gases or volatile organics.
Explanation:
Brass: Cu + Zn. Bronze: Cu + Sn. Steel: Fe + C. Duralumin: Al + Cu + Mg + Mn. Brass is corrosion-resistant and used in plumbing, musical instruments. Zinc content varies (5-45%). Brass with higher zinc is stronger but less ductile. Some brasses contain small amounts of other elements.
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