Looking for classes? Ksquare Career Institute, Bengaluru →
Chemistry
The p-Block Elements (Group 15 to 18)
11 questions, each with its answer.
-
In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it?Down group 16, acidic strength increases: $H_2O < H_2S < H_2Se < H_2Te$, so $pK_a$ decreases (not increases). So '$H_2O < H_2S < H_2Se < H_2Te$ : increasing $pK_a$' is not correct. The other sequences are correct.
-
The correct structure of tribromooctaoxide is:Tribromooctaoxide is $Br_3O_8$. The three Br atoms are linked in a chain, Br–Br–Br.
Each terminal Br carries three double-bonded O atoms and the central Br carries two double-bonded O atoms, giving 8 O atoms and no formal charges.
That is every hard question in The p-Block Elements (Group 15 to 18).
Want a score?
Answers here are not saved. Practise as a test to be marked and see your progress.
Practise as a test