StoichiometryPercentage Yield521Choose the best answerWhen 80 g CaCO₃ decomposes, the actual yield of CO₂ is 30 g. What is the percentage yield? CaCO₃ → CaO + CO₂A50%B60%C75%D85% Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoke and Its Uses522Choose the best answerWhich statement about coke is false?AIt is mainly carbon.BIt is porous.CIt is used in blast furnaces.DIt contains a high proportion of volatile substances. Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Neutron523Choose the best answerHow many neutrons are present in ⁶⁵₃₀Zn?A30B35C65D95 Like 0 Discuss 0Share
Nomenclature of Organic CompoundsNomenclature of Organic Compounds MCQs#Common and IUPAC Names524Choose the best answerWhat is the common name of the compound shown?Aα-Chloro-β-aminobutyric acidBβ-Chloro-α-aminopropionic acidCα-Amino-γ-chlorobutyric acidDβ-Chloro-α-aminobutyric acid Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Chemical Equilibrium#Le Chatelier's Principle525Choose the best answerFor the endothermic equilibrium CH₄(g) + H₂O(g) ⇌ CO(g) + 3H₂(g), what happens when temperature is increased?AThe equilibrium will not be disturbedBThe equilibrium will shift in the backward directionCThe equilibrium will shift in the forward directionDNone of the above Like 0 Discuss 0Share