Download App

The p-Block Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements2 Marks
Question
Complete the following chemical reaction equations:
  1. $\text{P}_{4(\text{s})}+\text{NaoH}_{(\text{aq})}+\text{H}_{2}\text{O}_{(\text{l})}\rightarrow$
  2. $\text{I}^{-}_{(\text{aq})}+\text{H}_{2}\text{O}_{(\text{l})}+{O}_{3(\text{g})}\rightarrow$
✓

Answer

  1. $\text{P}_{4}+\text{3NaOH}+\text{3H}_{2}\text{O}\rightarrow\text{PH}_{3}+\text{3NaOH}_{2}\text{PO}_{2}.$
  2. $\text{2I}^{-}+\text{H}_{2}\text{O}+\text{O}_{3}\rightarrow\text{2OH}^{-}+\text{I}_{2}+\text{O}_{2}.$

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 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

  1. Following reactions occur at cathode during the electrolysis of aqueous silver chloride solution:
$Ag^+(aq) + e^- \rightarrow Ag(s) E^o= +0.80\ V$
$H^+(aq) + e^- \rightarrow H_2(g) E^o = 0.00\ V$
On the basis of their standard reduction electrode potential $(E^o)$ values, which reaction is feasible at the cathode and why?
  1. Define limiting molar conductivity. Why conductivity of an electrolyte solution decreases with the decrease in concentration?
→
Give the equations of reactions for the preparation of phenol from cumene.
→
Complete the following equations:
  1. $\mathrm{Ag}+\mathrm{PCl}_5 \rightarrow$
  2. $\mathrm{CaF}_2+\mathrm{H}_2 \mathrm{SO}_4 \rightarrow$
→
Sulphur dioxide is passed into aqueous solution of $Fe\ (III)$ salt?
→
Which aerosols deplete ozone?
→
Explain: Zone refining
→
Explain the classification of amine compounds.
→
Thermodynamic feasibility of the reaction alone cannot decide the rate of the reaction. Explain with the help of one example.
→
'Alcohols are versatile compounds' discuss exaction of this statement by giving suitable example.
→
Write the cell reaction of a lead storage battery when it is discharged. How does the density of the electrolyte change when the battery is discharged?
→