Free Periodic Properties and Trends MCQs with Answers
606 Periodic Properties and Trends MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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606 questions · page 31 of 31
- A. Sb3+
- B. Bi3+
- C. Sn3+
- D. Fe3+
Explanation: This is a fact Boron does not have a d orbital to stabilize its charge and thus is unstable as a cation in aqueous solution.This is a fact…
Correct answer: Bi3+- A. CrO> Cr2O3> CrO3
- B. CrO3> Cr2O3>CrO
- C. Cr2O3 >CrO>CrO3
- D. CrO3>CrO> Cr2O3
Explanation: The increasing acidic strength is in this order of oxidation state; Cr3+ > Cr2+ > Cr+1 As increasing oxidation state increases the acid…
Correct answer: CrO3> Cr2O3>CrO- A. ClO3
- B. ClO2
- C. Cl2 O7
- D. CI2 O7
Explanation: Anhydride literally means 'without water. It can be defined as the chemical compound formed by eliminating water from another compound…
Correct answer: Cl2 O7- A. Increase
- B. Decrease
- C. Increase then decrease
- D. Decrease then increase
Explanation: Ionic radius increases as you move from top to bottom on the periodic table.
Correct answer: Decrease- A. Cs
- B. Li
- C. He
- D. I
Explanation: Helium (He) has the highest first ionization energy. This means that it requires the most energy to remove an electron from a helium atom…
Correct answer: He- A. Si and Al
- B. Ca and Mg
- C. B and Ar
- D. B and Al
Explanation: Silicon (Si) and Aluminum (Al) are the two most abundant elements in the Earth's crust.
Correct answer: Si and Al