Which of the reactions represented by the following equations will take place at room temperature?
A. C6H2O → CO + H2 B. CuO + H2 → Cu + H2O C. N2 + 3H2 → 2NH3 D. 2Na + 2H2O → 2NaOH + H2 E. 2Fe + 3CI2 → 2FeCI3 Correct Answer: Option D – 2Na + 2H2O → 2NaOH + H2When starch undergoes complete enzyme-catalyzed hydrolysis, the resulting product is?
A. glucose B. maltose C. sucrose D. fructose E. cellulose Correct Answer: Option A – glucose
In the redox reaction represented by the following equation: Cu²+aq + Zn(s) → Cu(s) + Zn²+
A. the oxidation number of copper increases B. copper (ll) ions are reduced to copper atoms C. zinc atoms are reduced to zinc ions D. copper (ll) ions donate electrons to zinc atoms Correct Answer: Option B – copper (ll) ions are reduced to copper...
The ratio of reactants to products is 1: 3: 2 in the reaction represented by the equation below: N2 (g) + 3H2 (g) → 2NH3(g). Which of the following law is demonstrated by this?
A. Boyle’s law B. Law of multiple proportion C. Gay Lussac’s law D. Law of constant composition E. Avogadro’s law Correct Answer: Option C – Gay Lussac’s law
Esterification of propane 1,2,3-triol and unsaturated higher carboxylic acids will produce?
A. fats B. soap C. methly-propanoate D. alkanols E. oils Correct Answer: Option E – oilsProducts
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