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Plovdiv entrance test Questions and Correct Answers | Latest Update $12.09   Add to cart

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Plovdiv entrance test Questions and Correct Answers | Latest Update

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  • Plovdiv entrance
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  • Plovdiv Entrance

The mass number and atomic number of the lithium atom are shown by the symbol 3 7 Li. What is the correct symbol for the lithium-ion in lithium chloride? A) 2 6 LiB) 3 6 Li+ C) 3 7 Li+ D) 3 7 Li- C) 3 7 Li+ All of the following can act as Brønsted-Lowry acid (proton donors) in aqueou...

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  • October 3, 2024
  • 22
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Plovdiv entrance
  • Plovdiv entrance
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MASTER01
1 | P a g e | © copyright 2024/2025 | Grade A+




Plovdiv entrance test Questions
and Correct Answers | Latest
Update
The mass number and atomic number of the lithium atom are shown by the

symbol 3 7 Li. What is the correct symbol for the lithium-ion in lithium chloride?


A) 2 6 Li-


B) 3 6 Li+


C) 3 7 Li+


D) 3 7 Li-


✓ C) 3 7 Li+




All of the following can act as Brønsted-Lowry acid (proton donors) in

aqueous solution except:


A) HI


B) HCO3 -


C) H2S


D) NH3


✓ D) NH3




Master01 | October, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+

All of the following statements about carbon dioxide are true except:


A) it can be prepared by the action of acid on limestone


B) it is used to extinguish fires


C) it dissolves in water at room temperature


D) it sublimes rather than melts at 20°C and 1 atmosphere pressure


✓ D




Which of the options will form the major product ?


- primary carbocation


- secondary carbocation


- tertiary carbocation


✓ - TERTIARY CARBOCATION BECAUSE IT IS MORE STABLE




True or false , alcohols do not react with NaOH ?


✓ true , they do not react with NaOH and thus no salt is formed




Which of the reaction shown below involves the formation of an ionic

precipitate from a solution?


A) Ca2+ + CO3 CaCO3


B) HCO3 - + H+ H2CO3

Master01 | October, 2024/2025 | Latest update

, 1 | P a g e | © copyright 2024/2025 | Grade A+

C) Fe + Cu2+ Fe2+ + Cu


D) CaCO3 + H2CO3 Ca(HCO3)2


✓ A ; because a precipitate is formed when a cation and an anion

react.




Given the following process that has reached equilibrium: NaCl (s)-><- NaCl

(aq). For the phase equilibrium to exist, the NaCl (aq) must be a solution that

is:


A) concentrated


B) saturated


C) supersaturated


D) unsaturated


✓ B ; Since only a saturated solution would mean that there is a balance

in concentrations in the system




Glucose and fructose are:


A) enantiomers


B) functional isomers


C) tautomers


D) chain isomer


Master01 | October, 2024/2025 | Latest update

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