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’?

When the solution of sodium carbonate is added to the solution of calcium chloride, a precipitate is formed. a. What is the colour of the precipitate formed? b. Name the precipitate. c. What is the type of the chemical reaction?

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?

Arnav dissolves small amount of A' to a beaker containing water and observes that the solution temperature increases. What type of process takes place when 'A' ls added to water, based on temperature change?

A solid compund contains X, Y and Z atoms in a cubic lattice with X atoms occpying the corners ,Y atoms in the body centred positions and Z atoms at the centres of faces of the the unit cell what is the empirical formula of the compound ?

A solid is made of two element X and Y .The atoms Z are in C CP arrangement while the atoms X occupy all the terahedral sites .What is the formula of the compound ?

A compound is formed by element 'X ' ( cations and 'Y' ( anions ) ions of ' Y' form cubic all the octahedral voids. What is the molecular formula of the compound ?

The freezing point of a solution containing 4.8 g of a compound in 60 g of benzene is 4.48 ^(@) C . What is the molar mass of the compound ? (K_(f)=5.1 Km^(-1) , freezing point of benzene =5.5^(@)C )

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.

What will you observe when zinc granules are added to ferrous sulphate solution? Write the chemical reaction involved.