Download App

Chemical Kinetics — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryChemical Kinetics2 Marks
Question
For which type of reactions, order and molecularity have the same value?
✓

Answer

Elementary reactions have same value of order and molecularity. Elementary reaction is chemical reaction in which one or more reactants racts directly to form product in a single step with single transition state.
Example:
$\text{A + B}\xrightarrow{\ \ \ \ \ }\text{Products}$ Rate equation: $[A]^1[B]^1$ Order of reaction is sum of the cofficients of rate equation,
$\therefore$ Order of reaction $= 2$ Molecularity $= 2$

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 Chemical Kinetics→Chemical Kinetics — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

What is the basic structural difference between starch and cellulose?
→
Why is Frenkel defect found in AgCl?
→
When 3-methylbutan-2-ol is treated with HBr, the following reaction takes place:$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Br}\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3-\text{CH}-\text{CH}-\text{CH}_3\xrightarrow{\ \ \ \text{HBr} \ \ }\text{CH}_3-\text{C}-\text{CH}_2-\text{CH}_3\\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\ \ \ \ \text{OH}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
Give a mechanism for this reaction.
(Hint: The secondary carbocation formed in step II rearranges to a more stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.)
→
If $6 \times 10^{20}$ electron are used in reduction of an ion to form an atom, then find the equivalent of the ion.
→
Explain chemical reactivity of transition metals.
→
What is d-block element? Explain classification of d-block element?
→
Write chemical reaction of aniline with benzoyl chloride and write the name of the product obtained.
→
Calculate the temperature at which the solution containing $54 g$ of glucose, $C_6H_{12}O_6$ in $250 g$ of water will freeze. $(K_b$ for water $= 1.86 \ K \ kg mol^{-1})$
→
Write the differences between physisorption and chemisorption with respect to the following:
  1. Specificity.
  2. Temperature dependence.
  3. Reversibility and.
  4. Enthalpy change.
→
Write limitations of Werner's Coordination Theory
→