Download App

Redox Reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryRedox Reactions2 Marks
Question
Define oxidaiton number.
✓

Answer

It is oxidation state of element in its compound or ion according to set rules based on fact shared pair of electron belongs to more electronegative atom.

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 Redox Reactions→Redox Reactions — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Calculate the temperature above which the reduction of lead oxide in the following reaction becomes spontaneous:
PbO(s) + C(s) → Pb(s) + CO(g)
Given: $[\Delta\text{H}=108.4\text{kJ mol}^{-1};\ \Delta\text{S}=190\text{J K}^{-1}\text{mol}^{-1}]$
→
The work function ($W_0$) of some metals is listed below. Count the number of metals which will show photoelectric effect when light of 300nm wavelength falls on the metal.
Metal Li Na K Mg Cu Ag Fe Pt W
$W_0(\mathrm{eV})$ 2.4 2.3 2.2 3.7 4.8 4.3 4.7 6.3 4.75
→
On the basis of intermolecular forces and thermal energy, explain why?
  1. A solid has rigidity but liquids do not have rigidity?
  2. Gases have high compressibility but liquids and solids have poor compressibility?
→
Calculate the wavelength of one photon whose energy is 1 eV .
→
Predict the change in internal energy for an isolated system at constant volume.
→
In Rutherford’s experiment, generally the thin foil of heavy atoms, like gold, platinum etc. have been used to be bombarded by the $\alpha$-particles. If the thin foil of light atoms like aluminium etc. is used, what difference would be observed from the above results?
→
If density of liquid mercury is $1 3 . 6$ gram $c m ^{-3}$ then calculate number of moles in 1 liter of mercury. (Atomic mass of mercury $=200$ )
→
6.8 gm NaOH is dissolved in water to prepare
2 litre solution, then calculate pH of solution.
→
a. Arrange $\mathrm{MgO}, \mathrm{SrO}, \mathrm{K}_2 \mathrm{O}, \mathrm{Cs}_2 \mathrm{O}, \mathrm{Na}_2 \mathrm{O}$ in increasing order of basic character.
b. Arrange $\mathrm{CaCO}_3, \mathrm{KHCO}_3, \mathrm{NaHCO}_3, \mathrm{Na}_2 \mathrm{CO}_3$ in increasing order of Solubility.
→
Explain stock notation with example.
→