CBSE Class 12 Chemistry Chemical Kinetics (3)

Scroll down for PDF

CBSE Class 12 Chemistry Chemical Kinetics (3). CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

1. For a chemical reaction represented by R→ P the rate of reaction is denoted by –d [R]/dt or +d[P]/dt . State the significance of plus and minus sign.

2. Express the rate of reaction in terms of disappearance of hydrogen and appearance of ammonia in the given reaction.

N2(g) + 3 H2 (g) → 2NH3 (g)

3. Why rate of reaction does not remain constant throughout?

4. Write the unit of first order rate constant of a gaseous reaction if the partial pressure of gaseous reactant is given in bar.

5. What will be the order of reaction, if the rate of reaction does not depend on the concentration of any of the reactant.

6. For the elementary step of a chemical reaction :

H2 + I2 →2HI

rate of reaction →[H2] [I2]

What is the (i) molecularity and (ii) order of the reaction.

7.For a chemical reaction A→ B. The rate of the reaction is given as Rate = k [A]n the rate of the above reaction quadruples when the concentration of A is doubled. What is the value of n?

8.Mention one example of zero order reaction.

9. What is the value of the order of reaction of radioactive decay?

10. Express the relation between the half life period of a reactant and initial concentration for a reaction of nth order. 

Please click the link below to download full pdf file for CBSE Class 12 Chemistry Chemical Kinetics (3).

Tags: 


Click on the text For more study material for Chemistry please click here - Chemistry

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Tips for exam preparation

Students often get nervous during their exams. The reason behind this nervousness is either a lack of confidence or a lack of preparedness. To overcome these fears students are advised to do their preparation in such a way that will retain their confidence. For this...

Extension of dates by CBSE for Single Girl Child Merit (SGC) scholarship

CBSE has announced to extend dates for SGC scholarship. Previously the dates to submit the SGC scholarship form were 18 October 2019. Now dates have shifted. For online submission, the last date is 31st October. Whereas date for submission of hard copies of renewal...

TIPS: Study habits for success

Being a student is fairly a difficult job. Alongside maintaining your curricular as well as extra-curricular activities adds more to it. Performance in academics is one of the major concerns. Every parent now tries to get their children more indulged in studies. Need...

CBSE DATE SHEET 2020

Central Board of Secondary Education, CBSE is to conduct the 10th and 12th Board Examination 2020 from February 15, 2020. Due to University Admissions, CBSE has shifted Board Exams dates from 1 March to February 15 from 2019. This year too CBSE would be making changes...

JEE Entrance Exam 2020 Dates Registration Admit Cards Exam Pattern

JEE Entrance exam is conducted for students who wish to pursue engineering in different subjects or categories like mechanical, CS, etc.. It is officially organized and conducted by NTA. Formerly it was organized by CBSE. It avails seats for students in IITs, NITs, and...

CBSE Board Secretary says Class 10 and 12 CBSE Exam Pattern to be modified

The Central Board of Secondary Education is expected to introduce a few changes to the exam pattern for class 10 and board exams by 2023. Anurag Tripathi, secretary of CBSE speaking at an Assoham School Education Summit said that although this year class 10 students...

×
Studies Today