Download App

The p-Block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe p-Block Elements2 Marks
Question
Why are pentahalides more covalent than trihalides?
✓

Answer

It is because pentavalent cation has more polarising power than trivalent cation due to smaller size and higher charge. Therefore, pentahalides have more tendency to form covalent bond.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from The p-Block Elements→The p-Block Elements — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

  1. Ionisation energy of sulphur is lower than chlorine, why?
  2. Arrange in decreasing order of electronegativity F, O, N, Cl, C, H.
→
How would you convert cyclohexane to benzene?
→
Explain the various steps of mechanism of chlorination of methane.
→
How does electronegativity and non - metallic character related to each other?
→
Identify the redox reactions out of the following reactions and identify the oxidising and reducing agents in them.
$\text{Fe}_2\text{O}_3\text{(s)}+3\text{CO(g)}\xrightarrow{ \ \ \ \Delta\\\ \ \ \ }2\text{Fe(s)}+3\text{CO}_2\text{(g)}$
→
a. Which of the following does not conduct electric current and why? Molten NaCl , Solid $\mathrm{Pb}, \mathrm{AgNO}_3$ solution and Methanol.
b. Why is anode called oxidation electrode, whereas cathode is called reduction electrode?
c. Why is reduction potential of zinc -0.76 V ?
→
Capsule of $1 ml ; 1 N HCl$ is breaked and added in a container and volume of solution becomes 1000 ml , then what will be the pH of solution?
→
The $\mathrm{Mn}^{3+}$ ion is unstable in solution and undergoes disproportionation to give $\mathrm{Mn}^{2+}, \mathrm{MnO}_2$ and $\mathrm{H}^{+}$ions. Write a balanced ionic equation for the reaction.
→
Write formula for the following compound:
Tin(IV) oxide.
→
What happens when:
i. $\mathrm{LiNO}_3$ is heated.
ii. $\mathrm{KNO}_3$ is heated.
Write the chemical reactions involved.
→