Which among the following graphs represents a zero order reaction?

• A. <img alt="The graphs represents a zero order reaction - option a" class="alignnone size-full wp-image-282392" height="327" sizes="(max-width: 459px) 100vw, 459px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3a.png 459w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3a-300x214.png 300w" width="459"/>
• B. <img alt="The graphs represents a zero order reaction - option b" class="alignnone size-full wp-image-282394" height="332" sizes="(max-width: 477px) 100vw, 477px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3b.png 477w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3b-300x209.png 300w" width="477"/>
• C. <img alt="The graphs represents a zero order reaction - option c" class="alignnone size-full wp-image-282395" height="327" sizes="(max-width: 476px) 100vw, 476px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3c.png 476w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3c-300x206.png 300w" width="476"/>
• D. <img alt="The graphs represents a zero order reaction - option d" class="alignnone size-full wp-image-282396" height="324" sizes="(max-width: 465px) 100vw, 465px" src="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3d.png 465w, https://www.sanfoundry.com/wp-content/uploads/2020/07/chemical-reaction-engineering-questions-answers-reaction-kinetics-elements-modelling-rate-coefficient-1-q3d-300x209.png 300w" width="465"/>