While performing an experiment, to understand effect of pH on enzyme activity, a student prepared solution of varied pH. He observed that enzyme activity is maximum at a particular range of pH. What is the reason for its maximum activity at a particular range of pH? What would be the effect on enzyme activity if strong acid or strong base is added?

What are the effect of heat on the activities of inorganic catalysts and enzymes.

A buffer solution of acetic acid and sodium acetate is diluted 10 times. What is the effect on its pH?

When a compound ‘x’ is added to a chemical solution containing enzyme and substrate, the enzymatic activity stops. What could be the nature of compound ‘x’?

A student performed following two activities in school laboratory: Activity 1: Addition of zinc dust into copper sulphate solution taken in a test tube. Activity 2: Addition of an iron nail into copper sulphate solution taken in a test tube. He noted down his observations and concluded that chemical reaction occurs in both the cases based on the observed colour change of the resulting solution. Based on these activities, what can you conclude about the reactivity of elements zinc and iron as compared to that of copper?

Enzymes are proteins. Proteins are long chains of aminoacids linked to each other by peptide bonds. Amino acids have many functional groups in their structure. These functional groups are, many of themat least, ionisable. As they are weak acids and bases in chemical nature, this ionization is influenced by pH of the solution. For many enzymes, activity isinfluenced by surrounding pH. This is depicted in the curve below, explain briefly.

A student performed following two activities in school laboratory: Activity 1: Addition of zinc dust into copper sulphate solution taken in a test tube. Activity 2: Addition of an iron nail into copper sulphate solution taken in a test tube. He noted down his observations and concluded that chemical reaction occurs in both the cases based on the observed colour change of the resulting solution. What is the final colour of the solution in Activity 1

A student performed following two activities in school laboratory: Activity 1: Addition of zinc dust into copper sulphate solution taken in a test tube. Activity 2: Addition of an iron nail into copper sulphate solution taken in a test tube. He noted down his observations and concluded that chemical reaction occurs in both the cases based on the observed colour change of the resulting solution. What is the final colour of the solution in Activity 2?

A student performed following two activities in school laboratory: Activity 1: Addition of zinc dust into copper sulphate solution taken in a test tube. Activity 2: Addition of an iron nail into copper sulphate solution taken in a test tube. He noted down his observations and concluded that chemical reaction occurs in both the cases based on the observed colour change of the resulting solution. What are the products formed in Activity 2?

A student performed following two activities in school laboratory: Activity 1: Addition of zinc dust into copper sulphate solution taken in a test tube. Activity 2: Addition of an iron nail into copper sulphate solution taken in a test tube. He noted down his observations and concluded that chemical reaction occurs in both the cases based on the observed colour change of the resulting solution. What was the initial colour of the solution?