The law of traids is applicable to__________?
Correct answer: C. Cl, Br, I
- A. Li, Be, B
- B. F, Cl, Br
- C. Cl, Br, I
- D. Na, K, Rb
Explanation
Dobereiner's triads contain three elements with similar properties, such as chlorine, bromine and iodine, written as F, Cl and Br in the options here? Actually the valid halogen triad listed is Cl, Br, I, so option c is correct. Students may choose d because Na, K and Rb are successive Group 1 elements, but Na, K and Rb are not the usual Dobereiner triad used in this question.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Periodic Properties and Trends
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.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Periodic Properties and Trends questions
The concept of telluric helix was developed by___________?
Which one of the following is a bridge element?
The common oxidation state of lanthanides is_________?
Which one of the following is the correct sequence according to atomic weights?
The anhydride of HCIO4 is_________________?
In which compound of Xenon the oxidation state of Xenon is + 6?