COMEDK · Chemistry · 19. Chemical Kinetics
Rate law can be determined from a balanced chemical equation if
- A one of the reactants is in excess
- B it is a reversible reaction
- C there is a sequence of elementary reactions
- D it is an elementary reaction
Answer & Solution
Correct Answer
(D) it is an elementary reaction
Step-by-step Solution
Detailed explanation
For an elementary reaction, the reaction occurs in a single step. The molecularity of an elementary reaction is equal to its overall order. Therefore, the rate law can be written directly from the stoichiometric coefficients of the reactants in the balanced chemical equation.…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- In the following question a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below.
Assertion (A): A molecule of \(\mathrm{SF}_4\) is see-saw shaped, while that of \(\mathrm{CIF}_3\) is T-shaped.
Reason(R): SF\(_4\) has two lone pair of electrons. But CIF\(_3\) has one pair of electrons.COMEDK 2024 Medium - \(\mathrm{CH}_{3}-\mathrm{CN} \stackrel{\mathrm{Na}_{2} \mathrm{C}_{5} \mathrm{OH}}{\longrightarrow} A \stackrel{\mathrm{HNO}_{2}}{\longrightarrow} B \underset{573 \mathrm{~K}}{\stackrel{\mathrm{Cu}}{\longrightarrow}} C\) here \(C\) isCOMEDK 2014 Hard
- A sample of 0.50 g of an organic compound was treated according to Kjeldahl's method. The ammonia evolved was absorbed in 50 mL of \(0.5 \mathrm{M} \mathrm{H}_2 \mathrm{SO}_4\). The residual acid required 60 mL of 0.5 M solution of NaOH for neutralisation. The percentage of nitrogen in the compound isCOMEDK 2024 Easy
- With reference to vitamins and its deficiency diseases, the correct statements are:
(i) Cheilosis is due to the deficiency of Riboflavin
(ii) The deficiency of Vitamin B6 causes pernicious anaemia
(iii) Osteomalacia is due to the deficiency of Vitamin E
(iv) The deficiency of ascorbic acid causes scurvy
(v) The deficiency of Vitamin A causes xerophthalmiaCOMEDK 2024 Easy - The vacant space in bec lattice cell isCOMEDK 2021 Easy
- Dacron is obtained by the condensation polymerisation ofCOMEDK 2013 Easy
More PYQs from COMEDK
- The energy of an electron in the ground state of Hydrogen atom is \(-2.18 \times 10^{-18} \mathrm{~J}\). What would be the energy associated with the second excited state of \(\mathrm{Li}\) ?COMEDK 2023 Medium
- Which of the following will show geometrical isomerism?COMEDK 2023 Medium
- \(\int x^x(1+\log x) d x\) is equal toCOMEDK 2023 Easy
- IUPAC name of \(\left[\mathrm{CrCl}_{2}\left(\mathrm{NH}_{3}\right)_{4}\right] \mathrm{NO}_{3}\) isCOMEDK 2012 Hard
- An Alkene " X " on reaction with hot acidified \(\mathrm{KMnO}_4\) gave a mixture of Ethanoic acid and Propanone. Identify " X ".COMEDK 2025 Medium
- If \(\omega=\frac{-1+\sqrt{3 i}}{2} \operatorname{then}\left(3+\omega+3 \omega^{2}\right)^{4}\) isCOMEDK 2013 Easy